136492331 has 4 divisors (see below), whose sum is σ = 139067712. Its totient is φ = 133916952.

The previous prime is 136492283. The next prime is 136492351. The reversal of 136492331 is 133294631.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 133294631 = 6311 ⋅21121.

It is a cyclic number.

It is not a de Polignac number, because 136492331 - 2⁶ = 136492267 is a prime.

It is a super-2 number, since 2×136492331² = 37260312843627122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (136492351) 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, 1287611 + ... + 1287716.

It is an arithmetic number, because the mean of its divisors is an integer number (34766928).

Almost surely, 2^136492331 is an apocalyptic number.

136492331 is a deficient number, since it is larger than the sum of its proper divisors (2575381).

136492331 is an equidigital number, since it uses as much as digits as its factorization.

136492331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2575380.

The product of its digits is 11664, while the sum is 32.

The square root of 136492331 is about 11682.9932380362. The cubic root of 136492331 is about 514.8761206425.

The spelling of 136492331 in words is "one hundred thirty-six million, four hundred ninety-two thousand, three hundred thirty-one".