157408471 has 16 divisors (see below), whose sum is σ = 180679968. Its totient is φ = 135820800.

The previous prime is 157408469. The next prime is 157408523. The reversal of 157408471 is 174804751.

It is a cyclic number.

It is not a de Polignac number, because 157408471 - 2¹ = 157408469 is a prime.

It is a super-3 number, since 3×157408471³ (a number of 26 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (37).

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 157408471.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157408451) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11971 + ... + 21403.

It is an arithmetic number, because the mean of its divisors is an integer number (11292498).

Almost surely, 2^157408471 is an apocalyptic number.

157408471 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

157408471 is a deficient number, since it is larger than the sum of its proper divisors (23271497).

157408471 is a wasteful number, since it uses less digits than its factorization.

157408471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9522.

The product of its (nonzero) digits is 31360, while the sum is 37.

The square root of 157408471 is about 12546.2532654175. The cubic root of 157408471 is about 539.9365163139.

The spelling of 157408471 in words is "one hundred fifty-seven million, four hundred eight thousand, four hundred seventy-one".