136635401 has 8 divisors (see below), whose sum is σ = 156401280. Its totient is φ = 116931168.

The previous prime is 136635391. The next prime is 136635463. The reversal of 136635401 is 104536631.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 136635401 - 2¹⁴ = 136619017 is a prime.

It is not an unprimeable number, because it can be changed into a prime (136635491) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10556 + ... + 19613.

It is an arithmetic number, because the mean of its divisors is an integer number (19550160).

Almost surely, 2^136635401 is an apocalyptic number.

It is an amenable number.

136635401 is a deficient number, since it is larger than the sum of its proper divisors (19765879).

136635401 is an equidigital number, since it uses as much as digits as its factorization.

136635401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30823.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 136635401 is about 11689.1146371314. The cubic root of 136635401 is about 515.0559539544.

The spelling of 136635401 in words is "one hundred thirty-six million, six hundred thirty-five thousand, four hundred one".