423132157 has 4 divisors (see below), whose sum is σ = 483579616. Its totient is φ = 362684700.

The previous prime is 423132133. The next prime is 423132161. The reversal of 423132157 is 751231324.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a de Polignac number, because none of the positive numbers 2^k-423132157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423132107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30223719 + ... + 30223732.

It is an arithmetic number, because the mean of its divisors is an integer number (120894904).

Almost surely, 2^423132157 is an apocalyptic number.

It is an amenable number.

423132157 is a deficient number, since it is larger than the sum of its proper divisors (60447459).

423132157 is an equidigital number, since it uses as much as digits as its factorization.

423132157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60447458.

The product of its digits is 5040, while the sum is 28.

The square root of 423132157 is about 20570.1763969102. The cubic root of 423132157 is about 750.7442431511.

The spelling of 423132157 in words is "four hundred twenty-three million, one hundred thirty-two thousand, one hundred fifty-seven".