161700526 has 32 divisors (see below), whose sum is σ = 283852800. Its totient is φ = 68415840.

The previous prime is 161700523. The next prime is 161700527. The reversal of 161700526 is 625007161.

It is a super-2 number, since 2×161700526² = 52294120217353352, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 161700494 and 161700503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161700521) 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, 10035 + ... + 20593.

It is an arithmetic number, because the mean of its divisors is an integer number (8870400).

Almost surely, 2^161700526 is an apocalyptic number.

161700526 is a deficient number, since it is larger than the sum of its proper divisors (122152274).

161700526 is a wasteful number, since it uses less digits than its factorization.

161700526 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10624.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 161700526 is about 12716.1521695834. The cubic root of 161700526 is about 544.8000568360.

Adding to 161700526 its reverse (625007161), we get a palindrome (786707687).

The spelling of 161700526 in words is "one hundred sixty-one million, seven hundred thousand, five hundred twenty-six".