136400371 has 4 divisors (see below), whose sum is σ = 137086000. Its totient is φ = 135714744.

The previous prime is 136400359. The next prime is 136400377. The reversal of 136400371 is 173004631.

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

It is a cyclic number.

It is not a de Polignac number, because 136400371 - 2⁵ = 136400339 is a prime.

It is a super-2 number, since 2×136400371² = 37210122417875282, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (136400377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 342516 + ... + 342913.

It is an arithmetic number, because the mean of its divisors is an integer number (34271500).

Almost surely, 2^136400371 is an apocalyptic number.

136400371 is a deficient number, since it is larger than the sum of its proper divisors (685629).

136400371 is an equidigital number, since it uses as much as digits as its factorization.

136400371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 685628.

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 136400371 is about 11679.0569396677. The cubic root of 136400371 is about 514.7604642168.

The spelling of 136400371 in words is "one hundred thirty-six million, four hundred thousand, three hundred seventy-one".