161276000 has 96 divisors (see below), whose sum is σ = 413719488. Its totient is φ = 61670400.

The previous prime is 161275999. The next prime is 161276039. The reversal of 161276000 is 672161.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 91124 + ... + 92876.

It is an arithmetic number, because the mean of its divisors is an integer number (4309578).

Almost surely, 2^161276000 is an apocalyptic number.

161276000 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 161276000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (206859744).

161276000 is an abundant number, since it is smaller than the sum of its proper divisors (252443488).

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

161276000 is a wasteful number, since it uses less digits than its factorization.

161276000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1801 (or 1783 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 161276000 is about 12699.4488069365. The cubic root of 161276000 is about 544.3228691781.

The spelling of 161276000 in words is "one hundred sixty-one million, two hundred seventy-six thousand".