74157 has 8 divisors (see below), whose sum is σ = 104160. Its totient is φ = 46800.

The previous prime is 74149. The next prime is 74159. The reversal of 74157 is 75147.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 74157 - 2³ = 74149 is a prime.

It is a fibodiv number, since the Fibonacci-like sequence with seeds 741 and 57 contains 74157 itself.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74159) 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, 594 + ... + 707.

It is an arithmetic number, because the mean of its divisors is an integer number (13020).

2⁷⁴¹⁵⁷ is an apocalyptic number.

It is an amenable number.

74157 is a deficient number, since it is larger than the sum of its proper divisors (30003).

74157 is a wasteful number, since it uses less digits than its factorization.

74157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1323.

The product of its digits is 980, while the sum is 24.

The square root of 74157 is about 272.3178290160. The cubic root of 74157 is about 42.0130345031.

Subtracting 74157 from its reverse (75147), we obtain a triangular number (990 = T₄₄).

It can be divided in two parts, 74 and 157, that added together give a triangular number (231 = T₂₁).

The spelling of 74157 in words is "seventy-four thousand, one hundred fifty-seven".