161607435 has 16 divisors (see below), whose sum is σ = 282078720. Its totient is φ = 78355040.

The previous prime is 161607419. The next prime is 161607437. The reversal of 161607435 is 534706161.

It is not a de Polignac number, because 161607435 - 2⁴ = 161607419 is a prime.

It is a super-2 number, since 2×161607435² = 52233926094558450, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 161607396 and 161607405.

It is not an unprimeable number, because it can be changed into a prime (161607437) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 489555 + ... + 489884.

It is an arithmetic number, because the mean of its divisors is an integer number (17629920).

Almost surely, 2^161607435 is an apocalyptic number.

161607435 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

161607435 is a deficient number, since it is larger than the sum of its proper divisors (120471285).

161607435 is a wasteful number, since it uses less digits than its factorization.

161607435 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 979458.

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 161607435 is about 12712.4912979321. The cubic root of 161607435 is about 544.6954896280.

The spelling of 161607435 in words is "one hundred sixty-one million, six hundred seven thousand, four hundred thirty-five".