157427469 has 20 divisors (see below), whose sum is σ = 235510044. Its totient is φ = 104799744.

The previous prime is 157427467. The next prime is 157427509. The reversal of 157427469 is 964724751.

157427469 is a `hidden beast` number, since 1 + 574 + 2 + 74 + 6 + 9 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 41757444 + 115670025 = 6462^2 + 10755^2 .

It is not a de Polignac number, because 157427469 - 2¹ = 157427467 is a prime.

It is a super-2 number, since 2×157427469² = 49566815991491922, which contains 22 as substring.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157427461) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 97779 + ... + 99375.

Almost surely, 2^157427469 is an apocalyptic number.

It is an amenable number.

157427469 is a deficient number, since it is larger than the sum of its proper divisors (78082575).

157427469 is a wasteful number, since it uses less digits than its factorization.

157427469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2826 (or 2817 counting only the distinct ones).

The product of its digits is 423360, while the sum is 45.

The square root of 157427469 is about 12547.0103610382. The cubic root of 157427469 is about 539.9582375110.

The spelling of 157427469 in words is "one hundred fifty-seven million, four hundred twenty-seven thousand, four hundred sixty-nine".