165572974 has 8 divisors (see below), whose sum is σ = 283839408. Its totient is φ = 70959840.

The previous prime is 165572959. The next prime is 165572983. The reversal of 165572974 is 479275561.

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

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 3 ways as a sum of consecutive naturals, for example, 5913307 + ... + 5913334.

It is an arithmetic number, because the mean of its divisors is an integer number (35479926).

Almost surely, 2^165572974 is an apocalyptic number.

165572974 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

165572974 is a deficient number, since it is larger than the sum of its proper divisors (118266434).

165572974 is a wasteful number, since it uses less digits than its factorization.

165572974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11826650.

The product of its digits is 529200, while the sum is 46.

The square root of 165572974 is about 12867.5162327467. The cubic root of 165572974 is about 549.1148008714.

The spelling of 165572974 in words is "one hundred sixty-five million, five hundred seventy-two thousand, nine hundred seventy-four".