136872747 has 40 divisors (see below), whose sum is σ = 232784640. Its totient is φ = 79334640.

The previous prime is 136872739. The next prime is 136872767. The reversal of 136872747 is 747278631.

It is not a de Polignac number, because 136872747 - 2³ = 136872739 is a prime.

It is not an unprimeable number, because it can be changed into a prime (136872767) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 17154 + ... + 23832.

It is an arithmetic number, because the mean of its divisors is an integer number (5819616).

Almost surely, 2^136872747 is an apocalyptic number.

136872747 is a deficient number, since it is larger than the sum of its proper divisors (95911893).

136872747 is a wasteful number, since it uses less digits than its factorization.

136872747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6725 (or 6716 counting only the distinct ones).

The product of its digits is 395136, while the sum is 45.

The square root of 136872747 is about 11699.2626690745. The cubic root of 136872747 is about 515.3540117881.

The spelling of 136872747 in words is "one hundred thirty-six million, eight hundred seventy-two thousand, seven hundred forty-seven".