1372157 has 4 divisors (see below), whose sum is σ = 1431840. Its totient is φ = 1312476.

The previous prime is 1372139. The next prime is 1372171. The reversal of 1372157 is 7512731.

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 cyclic number.

It is not a de Polignac number, because 1372157 - 2¹⁸ = 1110013 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 (1372127) 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, 29807 + ... + 29852.

It is an arithmetic number, because the mean of its divisors is an integer number (357960).

2^1372157 is an apocalyptic number.

It is an amenable number.

1372157 is a deficient number, since it is larger than the sum of its proper divisors (59683).

1372157 is an equidigital number, since it uses as much as digits as its factorization.

1372157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59682.

The product of its digits is 1470, while the sum is 26.

The square root of 1372157 is about 1171.3910534062. The cubic root of 1372157 is about 111.1223119449.

Adding to 1372157 its reverse (7512731), we get a palindrome (8884888).

The spelling of 1372157 in words is "one million, three hundred seventy-two thousand, one hundred fifty-seven".