136285957 has 8 divisors (see below), whose sum is σ = 144512856. Its totient is φ = 128082432.

The previous prime is 136285943. The next prime is 136285969. The reversal of 136285957 is 759582631.

It can be written as a sum of positive squares in 4 ways, for example, as 113188321 + 23097636 = 10639^2 + 4806^2 .

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 136285957 - 2⁷ = 136285829 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136285907) 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 7 ways as a sum of consecutive naturals, for example, 6993 + ... + 17929.

It is an arithmetic number, because the mean of its divisors is an integer number (18064107).

Almost surely, 2^136285957 is an apocalyptic number.

136285957 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

136285957 is a deficient number, since it is larger than the sum of its proper divisors (8226899).

136285957 is a wasteful number, since it uses less digits than its factorization.

136285957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11687.

The product of its digits is 453600, while the sum is 46.

The square root of 136285957 is about 11674.1576569789. The cubic root of 136285957 is about 514.6164952073.

The spelling of 136285957 in words is "one hundred thirty-six million, two hundred eighty-five thousand, nine hundred fifty-seven".