136866953 has 8 divisors (see below), whose sum is σ = 141457920. Its totient is φ = 132287040.

The previous prime is 136866943. The next prime is 136866991. The reversal of 136866953 is 359668631.

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 136866953 - 2⁶ = 136866889 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 136866898 and 136866907.

It is not an unprimeable number, because it can be changed into a prime (136866923) 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, 28028 + ... + 32546.

It is an arithmetic number, because the mean of its divisors is an integer number (17682240).

Almost surely, 2^136866953 is an apocalyptic number.

It is an amenable number.

136866953 is a deficient number, since it is larger than the sum of its proper divisors (4590967).

136866953 is an equidigital number, since it uses as much as digits as its factorization.

136866953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5527.

The product of its digits is 699840, while the sum is 47.

The square root of 136866953 is about 11699.0150440112. The cubic root of 136866953 is about 515.3467398187.

The spelling of 136866953 in words is "one hundred thirty-six million, eight hundred sixty-six thousand, nine hundred fifty-three".