137085857 has 8 divisors (see below), whose sum is σ = 138378240. Its totient is φ = 135799840.

The previous prime is 137085847. The next prime is 137085863. The reversal of 137085857 is 758580731.

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 137085857 - 2⁸ = 137085601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (137085827) 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, 48869 + ... + 51597.

It is an arithmetic number, because the mean of its divisors is an integer number (17297280).

Almost surely, 2^137085857 is an apocalyptic number.

It is an amenable number.

137085857 is a deficient number, since it is larger than the sum of its proper divisors (1292383).

137085857 is a wasteful number, since it uses less digits than its factorization.

137085857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3183.

The product of its (nonzero) digits is 235200, while the sum is 44.

The square root of 137085857 is about 11708.3669655507. The cubic root of 137085857 is about 515.6213407368.

The spelling of 137085857 in words is "one hundred thirty-seven million, eighty-five thousand, eight hundred fifty-seven".