151874 has 4 divisors (see below), whose sum is σ = 227814. Its totient is φ = 75936.

The previous prime is 151871. The next prime is 151883. The reversal of 151874 is 478151.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 478151 = 37 ⋅12923.

It can be written as a sum of positive squares in only one way, i.e., 117649 + 34225 = 343^2 + 185^2 .

It is a Curzon number.

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (151871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37967 + ... + 37970.

151874 is a Friedman number, since it can be written as (8+7)^(4+1)/5-1, using all its digits and the basic arithmetic operations.

2¹⁵¹⁸⁷⁴ is an apocalyptic number.

151874 is a deficient number, since it is larger than the sum of its proper divisors (75940).

151874 is an equidigital number, since it uses as much as digits as its factorization.

151874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75939.

The product of its digits is 1120, while the sum is 26.

The square root of 151874 is about 389.7101487003. The cubic root of 151874 is about 53.3532824677.

The spelling of 151874 in words is "one hundred fifty-one thousand, eight hundred seventy-four".