157472279 has 2 divisors, whose sum is σ = 157472280. Its totient is φ = 157472278.

The previous prime is 157472269. The next prime is 157472297. The reversal of 157472279 is 972274751.

157472279 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

Together with next prime (157472297) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-157472279 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (157472269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78736139 + 78736140.

It is an arithmetic number, because the mean of its divisors is an integer number (78736140).

Almost surely, 2^157472279 is an apocalyptic number.

157472279 is a deficient number, since it is larger than the sum of its proper divisors (1).

157472279 is an equidigital number, since it uses as much as digits as its factorization.

157472279 is an evil number, because the sum of its binary digits is even.

The product of its digits is 246960, while the sum is 44.

The square root of 157472279 is about 12548.7959183342. The cubic root of 157472279 is about 540.0094637116.

It can be divided in two parts, 157472 and 279, that added together give a palindrome (157751).

The spelling of 157472279 in words is "one hundred fifty-seven million, four hundred seventy-two thousand, two hundred seventy-nine".