361665925 has 6 divisors (see below), whose sum is σ = 448465778. Its totient is φ = 289332720.

The previous prime is 361665923. The next prime is 361665937. The reversal of 361665925 is 529566163.

It can be written as a sum of positive squares in 3 ways, for example, as 2411809 + 359254116 = 1553^2 + 18954^2 .

It is not a de Polignac number, because 361665925 - 2¹ = 361665923 is a prime.

It is a super-2 number, since 2×361665925² = 261604482612211250, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (361665923) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7233294 + ... + 7233343.

Almost surely, 2^361665925 is an apocalyptic number.

It is an amenable number.

361665925 is a deficient number, since it is larger than the sum of its proper divisors (86799853).

361665925 is a wasteful number, since it uses less digits than its factorization.

361665925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14466647 (or 14466642 counting only the distinct ones).

The product of its digits is 291600, while the sum is 43.

The square root of 361665925 is about 19017.5162679042. The cubic root of 361665925 is about 712.4742906492.

The spelling of 361665925 in words is "three hundred sixty-one million, six hundred sixty-five thousand, nine hundred twenty-five".