165274983 has 12 divisors (see below), whose sum is σ = 243810528. Its totient is φ = 107838720.

The previous prime is 165274979. The next prime is 165275027. The reversal of 165274983 is 389472561.

165274983 is a `hidden beast` number, since 1 + 6 + 527 + 49 + 83 = 666.

It is not a de Polignac number, because 165274983 - 2² = 165274979 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165274913) 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 11 ways as a sum of consecutive naturals, for example, 194938 + ... + 195783.

It is an arithmetic number, because the mean of its divisors is an integer number (20317544).

Almost surely, 2^165274983 is an apocalyptic number.

165274983 is a deficient number, since it is larger than the sum of its proper divisors (78535545).

165274983 is a wasteful number, since it uses less digits than its factorization.

165274983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390774 (or 390771 counting only the distinct ones).

The product of its digits is 362880, while the sum is 45.

The square root of 165274983 is about 12855.9318215367. The cubic root of 165274983 is about 548.7851787750.

The spelling of 165274983 in words is "one hundred sixty-five million, two hundred seventy-four thousand, nine hundred eighty-three".