136678953 has 8 divisors (see below), whose sum is σ = 186683616. Its totient is φ = 88896800.

The previous prime is 136678939. The next prime is 136679021. The reversal of 136678953 is 359876631.

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 136678953 - 2⁶ = 136678889 is a prime.

It is a super-2 number, since 2×136678953² = 37362272386352418, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (136678253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 555483 + ... + 555728.

It is an arithmetic number, because the mean of its divisors is an integer number (23335452).

Almost surely, 2^136678953 is an apocalyptic number.

It is an amenable number.

136678953 is a deficient number, since it is larger than the sum of its proper divisors (50004663).

136678953 is a wasteful number, since it uses less digits than its factorization.

136678953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1111255.

The product of its digits is 816480, while the sum is 48.

The square root of 136678953 is about 11690.9774185053. The cubic root of 136678953 is about 515.1106721651.

The spelling of 136678953 in words is "one hundred thirty-six million, six hundred seventy-eight thousand, nine hundred fifty-three".