152891 has 4 divisors (see below), whose sum is σ = 156192. Its totient is φ = 149592.

The previous prime is 152879. The next prime is 152897. The reversal of 152891 is 198251.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-152891 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 152891.

It is not an unprimeable number, because it can be changed into a prime (152897) 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, 1580 + ... + 1673.

It is an arithmetic number, because the mean of its divisors is an integer number (39048).

2¹⁵²⁸⁹¹ is an apocalyptic number.

152891 is a deficient number, since it is larger than the sum of its proper divisors (3301).

152891 is an equidigital number, since it uses as much as digits as its factorization.

152891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3300.

The product of its digits is 720, while the sum is 26.

The square root of 152891 is about 391.0127875147. The cubic root of 152891 is about 53.4721082086.

It can be divided in two parts, 15 and 2891, that multiplied together give a triangular number (43365 = T₂₉₄).

The spelling of 152891 in words is "one hundred fifty-two thousand, eight hundred ninety-one".