136476306437 has 4 divisors (see below), whose sum is σ = 136631217996. Its totient is φ = 136321394880.

The previous prime is 136476306319. The next prime is 136476306521. The reversal of 136476306437 is 734603674631.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 734603674631 = 14887 ⋅49345313.

It can be written as a sum of positive squares in 2 ways, for example, as 14930640481 + 121545665956 = 122191^2 + 348634^2 .

It is a cyclic number.

It is not a de Polignac number, because 136476306437 - 2⁸ = 136476306181 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 (136476306737) 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, 77454458 + ... + 77456219.

It is an arithmetic number, because the mean of its divisors is an integer number (34157804499).

Almost surely, 2^136476306437 is an apocalyptic number.

It is an amenable number.

136476306437 is a deficient number, since it is larger than the sum of its proper divisors (154911559).

136476306437 is an equidigital number, since it uses as much as digits as its factorization.

136476306437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154911558.

The product of its (nonzero) digits is 4572288, while the sum is 50.

The spelling of 136476306437 in words is "one hundred thirty-six billion, four hundred seventy-six million, three hundred six thousand, four hundred thirty-seven".