151857 has 12 divisors (see below), whose sum is σ = 224640. Its totient is φ = 98808.

The previous prime is 151849. The next prime is 151871. The reversal of 151857 is 758151.

It is not a de Polignac number, because 151857 - 2³ = 151849 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 151857.

It is not an unprimeable number, because it can be changed into a prime (151817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 244 + ... + 602.

It is an arithmetic number, because the mean of its divisors is an integer number (18720).

2¹⁵¹⁸⁵⁷ is an apocalyptic number.

It is an amenable number.

151857 is a deficient number, since it is larger than the sum of its proper divisors (72783).

151857 is a wasteful number, since it uses less digits than its factorization.

151857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 412 (or 409 counting only the distinct ones).

The product of its digits is 1400, while the sum is 27.

The square root of 151857 is about 389.6883370079. The cubic root of 151857 is about 53.3512916954.

The spelling of 151857 in words is "one hundred fifty-one thousand, eight hundred fifty-seven".