165250004 has 12 divisors (see below), whose sum is σ = 299159700. Its totient is φ = 79775808.

The previous prime is 165250003. The next prime is 165250031. The reversal of 165250004 is 400052561.

165250004 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 130416400 + 34833604 = 11420^2 + 5902^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165250003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 712169 + ... + 712400.

It is an arithmetic number, because the mean of its divisors is an integer number (24929975).

Almost surely, 2^165250004 is an apocalyptic number.

It is an amenable number.

165250004 is a deficient number, since it is larger than the sum of its proper divisors (133909696).

165250004 is a wasteful number, since it uses less digits than its factorization.

165250004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1424602 (or 1424600 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 165250004 is about 12854.9602877644. The cubic root of 165250004 is about 548.7575303163.

The spelling of 165250004 in words is "one hundred sixty-five million, two hundred fifty thousand, four".