190525165 has 4 divisors (see below), whose sum is σ = 228630204. Its totient is φ = 152420128.

The previous prime is 190525147. The next prime is 190525183. The reversal of 190525165 is 561525091.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (190525147) and next prime (190525183).

It can be written as a sum of positive squares in 2 ways, for example, as 149744169 + 40780996 = 12237^2 + 6386^2 .

It is a cyclic number.

It is not a de Polignac number, because 190525165 - 2¹⁷ = 190394093 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 190525165.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19052512 + ... + 19052521.

It is an arithmetic number, because the mean of its divisors is an integer number (57157551).

Almost surely, 2^190525165 is an apocalyptic number.

It is an amenable number.

190525165 is a deficient number, since it is larger than the sum of its proper divisors (38105039).

190525165 is an equidigital number, since it uses as much as digits as its factorization.

190525165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38105038.

The product of its (nonzero) digits is 13500, while the sum is 34.

The square root of 190525165 is about 13803.0853435020. The cubic root of 190525165 is about 575.4188907289.

The spelling of 190525165 in words is "one hundred ninety million, five hundred twenty-five thousand, one hundred sixty-five".