136460491 has 4 divisors (see below), whose sum is σ = 136514952. Its totient is φ = 136406032.

The previous prime is 136460459. The next prime is 136460501. The reversal of 136460491 is 194064631.

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

It is a cyclic number.

It is not a de Polignac number, because 136460491 - 2⁵ = 136460459 is a prime.

It is a super-2 number, since 2×136460491² = 37242931207922162, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (136460431) 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 3 ways as a sum of consecutive naturals, for example, 23281 + ... + 28546.

It is an arithmetic number, because the mean of its divisors is an integer number (34128738).

Almost surely, 2^136460491 is an apocalyptic number.

136460491 is a deficient number, since it is larger than the sum of its proper divisors (54461).

136460491 is an equidigital number, since it uses as much as digits as its factorization.

136460491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54460.

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 136460491 is about 11681.6304940706. The cubic root of 136460491 is about 514.8360819324.

The spelling of 136460491 in words is "one hundred thirty-six million, four hundred sixty thousand, four hundred ninety-one".