157374225 has 72 divisors (see below), whose sum is σ = 298210080. Its totient is φ = 81357120.

The previous prime is 157374199. The next prime is 157374233. The reversal of 157374225 is 522473751.

It is not a de Polignac number, because 157374225 - 2⁸ = 157373969 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 157374225.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1896034 + ... + 1896116.

Almost surely, 2^157374225 is an apocalyptic number.

157374225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

157374225 is a deficient number, since it is larger than the sum of its proper divisors (140835855).

157374225 is an equidigital number, since it uses as much as digits as its factorization.

157374225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208 (or 144 counting only the distinct ones).

The product of its digits is 58800, while the sum is 36.

The square root of 157374225 is about 12544.8884012573. Note that the first 3 decimals coincide. The cubic root of 157374225 is about 539.8973570341.

The spelling of 157374225 in words is "one hundred fifty-seven million, three hundred seventy-four thousand, two hundred twenty-five".