165474929 has 2 divisors, whose sum is σ = 165474930. Its totient is φ = 165474928.

The previous prime is 165474917. The next prime is 165474961. The reversal of 165474929 is 929474561.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 99540529 + 65934400 = 9977^2 + 8120^2 .

It is a cyclic number.

It is not a de Polignac number, because 165474929 - 2²⁴ = 148697713 is a prime.

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

It is not a weakly prime, because it can be changed into another prime (165474979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82737464 + 82737465.

It is an arithmetic number, because the mean of its divisors is an integer number (82737465).

Almost surely, 2^165474929 is an apocalyptic number.

It is an amenable number.

165474929 is a deficient number, since it is larger than the sum of its proper divisors (1).

165474929 is an equidigital number, since it uses as much as digits as its factorization.

165474929 is an evil number, because the sum of its binary digits is even.

The product of its digits is 544320, while the sum is 47.

The square root of 165474929 is about 12863.7058812770. The cubic root of 165474929 is about 549.0063922954.

The spelling of 165474929 in words is "one hundred sixty-five million, four hundred seventy-four thousand, nine hundred twenty-nine".