157623 has 4 divisors (see below), whose sum is σ = 210168. Its totient is φ = 105080.

The previous prime is 157579. The next prime is 157627. The reversal of 157623 is 326751.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 326751 = 3 ⋅108917.

It is a cyclic number.

It is not a de Polignac number, because 157623 - 2⁶ = 157559 is a prime.

It is a D-number.

It is a junction number, because it is equal to n+sod(n) for n = 157593 and 157602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157627) 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, 26268 + ... + 26273.

It is an arithmetic number, because the mean of its divisors is an integer number (52542).

2¹⁵⁷⁶²³ is an apocalyptic number.

157623 is a deficient number, since it is larger than the sum of its proper divisors (52545).

157623 is an equidigital number, since it uses as much as digits as its factorization.

157623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52544.

The product of its digits is 1260, while the sum is 24.

The square root of 157623 is about 397.0176318503. The cubic root of 157623 is about 54.0181694688.

It can be divided in two parts, 157 and 623, that added together give a triangular number (780 = T₃₉).

The spelling of 157623 in words is "one hundred fifty-seven thousand, six hundred twenty-three".