423157 has 8 divisors (see below), whose sum is σ = 492032. Its totient is φ = 356400.

The previous prime is 423133. The next prime is 423173. The reversal of 423157 is 751324.

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

It is a cyclic number.

It is not a de Polignac number, because 423157 - 2¹⁵ = 390389 is a prime.

It is a Duffinian number.

423157 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423127) 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, 69 + ... + 922.

It is an arithmetic number, because the mean of its divisors is an integer number (61504).

2⁴²³¹⁵⁷ is an apocalyptic number.

It is an amenable number.

423157 is a deficient number, since it is larger than the sum of its proper divisors (68875).

423157 is an equidigital number, since it uses as much as digits as its factorization.

423157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1059.

The product of its digits is 840, while the sum is 22.

The square root of 423157 is about 650.5051882960. The cubic root of 423157 is about 75.0758935467.

The spelling of 423157 in words is "four hundred twenty-three thousand, one hundred fifty-seven".