161433000 has 160 divisors (see below), whose sum is σ = 564581160. Its totient is φ = 43027200.

The previous prime is 161432993. The next prime is 161433001. The reversal of 161433000 is 334161.

161433000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 65901924 + 95531076 = 8118^2 + 9774^2 .

It is a super-2 number, since 2×161433000² = 52121226978000000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (161433001) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 80004 + ... + 81996.

Almost surely, 2^161433000 is an apocalyptic number.

161433000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 161433000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (282290580).

161433000 is an abundant number, since it is smaller than the sum of its proper divisors (403148160).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

161433000 is a wasteful number, since it uses less digits than its factorization.

161433000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2026 (or 2003 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 161433000 is about 12705.6286739382. The cubic root of 161433000 is about 544.4994422051.

Adding to 161433000 its reverse (334161), we get a palindrome (161767161).

The spelling of 161433000 in words is "one hundred sixty-one million, four hundred thirty-three thousand".