161039526 has 8 divisors (see below), whose sum is σ = 322079064. Its totient is φ = 53679840.

The previous prime is 161039507. The next prime is 161039561. The reversal of 161039526 is 625930161.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

161039526 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13419955 + ... + 13419966.

It is an arithmetic number, because the mean of its divisors is an integer number (40259883).

Almost surely, 2^161039526 is an apocalyptic number.

161039526 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

161039526 is a wasteful number, since it uses less digits than its factorization.

161039526 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26839926.

The product of its (nonzero) digits is 9720, while the sum is 33.

The square root of 161039526 is about 12690.1349874617. The cubic root of 161039526 is about 544.0566977922.

Adding to 161039526 its reverse (625930161), we get a palindrome (786969687).

The spelling of 161039526 in words is "one hundred sixty-one million, thirty-nine thousand, five hundred twenty-six".