1372481157 has 4 divisors (see below), whose sum is σ = 1829974880. Its totient is φ = 914987436.

The previous prime is 1372481153. The next prime is 1372481171. The reversal of 1372481157 is 7511842731.

It is a happy number.

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 not a de Polignac number, because 1372481157 - 2² = 1372481153 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 (1372481153) 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, 228746857 + ... + 228746862.

It is an arithmetic number, because the mean of its divisors is an integer number (457493720).

Almost surely, 2^1372481157 is an apocalyptic number.

It is an amenable number.

1372481157 is a deficient number, since it is larger than the sum of its proper divisors (457493723).

1372481157 is an equidigital number, since it uses as much as digits as its factorization.

1372481157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 457493722.

The product of its digits is 47040, while the sum is 39.

The square root of 1372481157 is about 37047.0127945561. The cubic root of 1372481157 is about 1111.3106173061.

The spelling of 1372481157 in words is "one billion, three hundred seventy-two million, four hundred eighty-one thousand, one hundred fifty-seven".