165032481 has 16 divisors (see below), whose sum is σ = 233471808. Its totient is φ = 103334400.

The previous prime is 165032479. The next prime is 165032489. The reversal of 165032481 is 184230561.

It is not a de Polignac number, because 165032481 - 2¹ = 165032479 is a prime.

It is a super-2 number, since 2×165032481² = 54471439570030722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (165032489) 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, 23466 + ... + 29676.

It is an arithmetic number, because the mean of its divisors is an integer number (14591988).

Almost surely, 2^165032481 is an apocalyptic number.

It is an amenable number.

165032481 is a deficient number, since it is larger than the sum of its proper divisors (68439327).

165032481 is a wasteful number, since it uses less digits than its factorization.

165032481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6752.

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 165032481 is about 12846.4968376597. The cubic root of 165032481 is about 548.5166431853.

The spelling of 165032481 in words is "one hundred sixty-five million, thirty-two thousand, four hundred eighty-one".