136576397 has 4 divisors (see below), whose sum is σ = 137062716. Its totient is φ = 136090080.

The previous prime is 136576393. The next prime is 136576403. The reversal of 136576397 is 793675631.

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

It can be written as a sum of positive squares in 2 ways, for example, as 34445161 + 102131236 = 5869^2 + 10106^2 .

It is a cyclic number.

It is not a de Polignac number, because 136576397 - 2² = 136576393 is a prime.

It is a super-2 number, since 2×136576397² = 37306224435003218, 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 (136576393) 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, 242738 + ... + 243299.

It is an arithmetic number, because the mean of its divisors is an integer number (34265679).

Almost surely, 2^136576397 is an apocalyptic number.

It is an amenable number.

136576397 is a deficient number, since it is larger than the sum of its proper divisors (486319).

136576397 is an equidigital number, since it uses as much as digits as its factorization.

136576397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 486318.

The product of its digits is 714420, while the sum is 47.

The square root of 136576397 is about 11686.5904779795. The cubic root of 136576397 is about 514.9818034856.

The spelling of 136576397 in words is "one hundred thirty-six million, five hundred seventy-six thousand, three hundred ninety-seven".