136452979 has 16 divisors (see below), whose sum is σ = 152212480. Its totient is φ = 121474080.

The previous prime is 136452973. The next prime is 136452989. The reversal of 136452979 is 979254631.

It is a happy number.

It is not a de Polignac number, because 136452979 - 2¹³ = 136444787 is a prime.

It is not an unprimeable number, because it can be changed into a prime (136452973) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 220132 + ... + 220750.

It is an arithmetic number, because the mean of its divisors is an integer number (9513280).

Almost surely, 2^136452979 is an apocalyptic number.

136452979 is a deficient number, since it is larger than the sum of its proper divisors (15759501).

136452979 is a wasteful number, since it uses less digits than its factorization.

136452979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1210.

The product of its digits is 408240, while the sum is 46.

The square root of 136452979 is about 11681.3089591878. The cubic root of 136452979 is about 514.8266347057.

The spelling of 136452979 in words is "one hundred thirty-six million, four hundred fifty-two thousand, nine hundred seventy-nine".