136325997 has 10 divisors (see below), whose sum is σ = 203647598. Its totient is φ = 90883944.

The previous prime is 136325983. The next prime is 136326011. The reversal of 136325997 is 799523631.

136325997 is a `hidden beast` number, since 1 + 3 + 632 + 5 + 9 + 9 + 7 = 666.

It is an interprime number because it is at equal distance from previous prime (136325983) and next prime (136326011).

It can be written as a sum of positive squares in only one way, i.e., 133957476 + 2368521 = 11574^2 + 1539^2 .

It is not a de Polignac number, because 136325997 - 2⁶ = 136325933 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136325927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 841438 + ... + 841599.

Almost surely, 2^136325997 is an apocalyptic number.

It is an amenable number.

136325997 is a deficient number, since it is larger than the sum of its proper divisors (67321601).

136325997 is an equidigital number, since it uses as much as digits as its factorization.

136325997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1683049 (or 1683040 counting only the distinct ones).

The product of its digits is 306180, while the sum is 45.

The square root of 136325997 is about 11675.8724299300. The cubic root of 136325997 is about 514.6668873567. Note that the first 3 decimals are identical.

The spelling of 136325997 in words is "one hundred thirty-six million, three hundred twenty-five thousand, nine hundred ninety-seven".