136031437 has 4 divisors (see below), whose sum is σ = 136056960. Its totient is φ = 136005916.

The previous prime is 136031429. The next prime is 136031449. The reversal of 136031437 is 734130631.

It is a happy number.

136031437 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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.

It is a cyclic number.

It is not a de Polignac number, because 136031437 - 2³ = 136031429 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 (136031477) 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, 1387 + ... + 16552.

It is an arithmetic number, because the mean of its divisors is an integer number (34014240).

Almost surely, 2^136031437 is an apocalyptic number.

It is an amenable number.

136031437 is a deficient number, since it is larger than the sum of its proper divisors (25523).

136031437 is an equidigital number, since it uses as much as digits as its factorization.

136031437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25522.

The product of its (nonzero) digits is 4536, while the sum is 28.

The square root of 136031437 is about 11663.2515620645. The cubic root of 136031437 is about 514.2959392845.

The spelling of 136031437 in words is "one hundred thirty-six million, thirty-one thousand, four hundred thirty-seven".