1236642325 has 12 divisors (see below), whose sum is σ = 1558576708. Its totient is φ = 973094400.

The previous prime is 1236642257. The next prime is 1236642353. The reversal of 1236642325 is 5232466321.

It can be written as a sum of positive squares in 6 ways, for example, as 182601169 + 1054041156 = 13513^2 + 32466^2 .

It is not a de Polignac number, because 1236642325 - 2²¹ = 1234545173 is a prime.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 403932 + ... + 406981.

Almost surely, 2^1236642325 is an apocalyptic number.

It is an amenable number.

1236642325 is a deficient number, since it is larger than the sum of its proper divisors (321934383).

1236642325 is an equidigital number, since it uses as much as digits as its factorization.

1236642325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 810984 (or 810979 counting only the distinct ones).

The product of its digits is 51840, while the sum is 34.

The square root of 1236642325 is about 35165.9256241038. The cubic root of 1236642325 is about 1073.3664969135.

The spelling of 1236642325 in words is "one billion, two hundred thirty-six million, six hundred forty-two thousand, three hundred twenty-five".