3157225987 has 4 divisors (see below), whose sum is σ = 3224401056. Its totient is φ = 3090050920.

The previous prime is 3157225979. The next prime is 3157225993. The reversal of 3157225987 is 7895227513.

3157225987 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7895227513 = 457 ⋅17276209.

It is a cyclic number.

It is not a de Polignac number, because 3157225987 - 2³ = 3157225979 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3157225987.

It is not an unprimeable number, because it can be changed into a prime (3157225997) 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, 33587464 + ... + 33587557.

It is an arithmetic number, because the mean of its divisors is an integer number (806100264).

Almost surely, 2^3157225987 is an apocalyptic number.

3157225987 is a deficient number, since it is larger than the sum of its proper divisors (67175069).

3157225987 is an equidigital number, since it uses as much as digits as its factorization.

3157225987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67175068.

The product of its digits is 1058400, while the sum is 49.

The square root of 3157225987 is about 56189.1981345169. The cubic root of 3157225987 is about 1467.0172580671.

The spelling of 3157225987 in words is "three billion, one hundred fifty-seven million, two hundred twenty-five thousand, nine hundred eighty-seven".