157473 has 6 divisors (see below), whose sum is σ = 227474. Its totient is φ = 104976.

The previous prime is 157457. The next prime is 157477. The reversal of 157473 is 374751.

It can be written as a sum of positive squares in only one way, i.e., 82944 + 74529 = 288^2 + 273^2 .

It is not a de Polignac number, because 157473 - 2⁴ = 157457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (157477) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8740 + ... + 8757.

2¹⁵⁷⁴⁷³ is an apocalyptic number.

It is an amenable number.

157473 is a deficient number, since it is larger than the sum of its proper divisors (70001).

157473 is a wasteful number, since it uses less digits than its factorization.

157473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17503 (or 17500 counting only the distinct ones).

The product of its digits is 2940, while the sum is 27.

The square root of 157473 is about 396.8286783991. The cubic root of 157473 is about 54.0010287870.

It can be divided in two parts, 157 and 473, that added together give a triangular number (630 = T₃₅).

The spelling of 157473 in words is "one hundred fifty-seven thousand, four hundred seventy-three".