165632542 has 16 divisors (see below), whose sum is σ = 250334640. Its totient is φ = 82190592.

The previous prime is 165632527. The next prime is 165632573. The reversal of 165632542 is 245236561.

It is a junction number, because it is equal to n+sod(n) for n = 165632498 and 165632507.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 199384 + ... + 200212.

It is an arithmetic number, because the mean of its divisors is an integer number (15645915).

Almost surely, 2^165632542 is an apocalyptic number.

165632542 is a deficient number, since it is larger than the sum of its proper divisors (84702098).

165632542 is a wasteful number, since it uses less digits than its factorization.

165632542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1467.

The product of its digits is 43200, while the sum is 34.

The square root of 165632542 is about 12869.8306904170. The cubic root of 165632542 is about 549.1806444444.

The spelling of 165632542 in words is "one hundred sixty-five million, six hundred thirty-two thousand, five hundred forty-two".