157474369 has 16 divisors (see below), whose sum is σ = 171883600. Its totient is φ = 144263808.

The previous prime is 157474333. The next prime is 157474381. The reversal of 157474369 is 963474751.

It can be written as a sum of positive squares in 8 ways, for example, as 121330225 + 36144144 = 11015^2 + 6012^2 .

It is not a de Polignac number, because 157474369 - 2⁷ = 157474241 is a prime.

It is a super-2 number, since 2×157474369² = 49596353783896322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (157474309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 502957 + ... + 503269.

It is an arithmetic number, because the mean of its divisors is an integer number (10742725).

Almost surely, 2^157474369 is an apocalyptic number.

It is an amenable number.

157474369 is a deficient number, since it is larger than the sum of its proper divisors (14409231).

157474369 is an equidigital number, since it uses as much as digits as its factorization.

157474369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 581 (or 555 counting only the distinct ones).

The product of its digits is 635040, while the sum is 46.

The square root of 157474369 is about 12548.8791929797. The cubic root of 157474369 is about 540.0118527348.

The spelling of 157474369 in words is "one hundred fifty-seven million, four hundred seventy-four thousand, three hundred sixty-nine".