136546379 has 4 divisors (see below), whose sum is σ = 137872176. Its totient is φ = 135220584.

The previous prime is 136546373. The next prime is 136546433. The reversal of 136546379 is 973645631.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-136546379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (136546373) 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, 662744 + ... + 662949.

It is an arithmetic number, because the mean of its divisors is an integer number (34468044).

Almost surely, 2^136546379 is an apocalyptic number.

136546379 is a deficient number, since it is larger than the sum of its proper divisors (1325797).

136546379 is a wasteful number, since it uses less digits than its factorization.

136546379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1325796.

The product of its digits is 408240, while the sum is 44.

The square root of 136546379 is about 11685.3061149462. The cubic root of 136546379 is about 514.9440715964.

The spelling of 136546379 in words is "one hundred thirty-six million, five hundred forty-six thousand, three hundred seventy-nine".