151859 has 4 divisors (see below), whose sum is σ = 152880. Its totient is φ = 150840.

The previous prime is 151849. The next prime is 151871. The reversal of 151859 is 958151.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 151859 - 2⁸ = 151603 is a prime.

It is a super-2 number, since 2×151859² = 46122311762, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (151849) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 239 + ... + 600.

It is an arithmetic number, because the mean of its divisors is an integer number (38220).

2¹⁵¹⁸⁵⁹ is an apocalyptic number.

151859 is a deficient number, since it is larger than the sum of its proper divisors (1021).

151859 is an equidigital number, since it uses as much as digits as its factorization.

151859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1020.

The product of its digits is 1800, while the sum is 29.

The square root of 151859 is about 389.6909031527. The cubic root of 151859 is about 53.3515259117.

The spelling of 151859 in words is "one hundred fifty-one thousand, eight hundred fifty-nine".