165146938 has 32 divisors (see below), whose sum is σ = 280791360. Its totient is φ = 72159360.

The previous prime is 165146929. The next prime is 165146939. The reversal of 165146938 is 839641561.

It is a super-2 number, since 2×165146938² = 54547022261551688, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 165146894 and 165146903.

It is not an unprimeable number, because it can be changed into a prime (165146939) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 199281 + ... + 200107.

It is an arithmetic number, because the mean of its divisors is an integer number (8774730).

Almost surely, 2^165146938 is an apocalyptic number.

165146938 is a deficient number, since it is larger than the sum of its proper divisors (115644422).

165146938 is a wasteful number, since it uses less digits than its factorization.

165146938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1182.

The product of its digits is 155520, while the sum is 43.

The square root of 165146938 is about 12850.9508597613. The cubic root of 165146938 is about 548.6434203723.

The spelling of 165146938 in words is "one hundred sixty-five million, one hundred forty-six thousand, nine hundred thirty-eight".