136412761 has 4 divisors (see below), whose sum is σ = 143592400. Its totient is φ = 129233124.

The previous prime is 136412719. The next prime is 136412791. The reversal of 136412761 is 167214631.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 167214631 = 947 ⋅176573.

It is a cyclic number.

It is not a de Polignac number, because 136412761 - 2¹¹ = 136410713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (136412711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3589791 + ... + 3589828.

It is an arithmetic number, because the mean of its divisors is an integer number (35898100).

Almost surely, 2^136412761 is an apocalyptic number.

It is an amenable number.

136412761 is a deficient number, since it is larger than the sum of its proper divisors (7179639).

136412761 is an equidigital number, since it uses as much as digits as its factorization.

136412761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7179638.

The product of its digits is 6048, while the sum is 31.

The square root of 136412761 is about 11679.5873642865. The cubic root of 136412761 is about 514.7760499247.

The spelling of 136412761 in words is "one hundred thirty-six million, four hundred twelve thousand, seven hundred sixty-one".