157248719 has 2 divisors, whose sum is σ = 157248720. Its totient is φ = 157248718.

The previous prime is 157248697. The next prime is 157248743. The reversal of 157248719 is 917842751.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 157248719 - 2¹⁶ = 157183183 is a prime.

It is a super-2 number, since 2×157248719² = 49454319254281922, which contains 22 as substring.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 157248719.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (157248319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78624359 + 78624360.

It is an arithmetic number, because the mean of its divisors is an integer number (78624360).

Almost surely, 2^157248719 is an apocalyptic number.

157248719 is a deficient number, since it is larger than the sum of its proper divisors (1).

157248719 is an equidigital number, since it uses as much as digits as its factorization.

157248719 is an evil number, because the sum of its binary digits is even.

The product of its digits is 141120, while the sum is 44.

The square root of 157248719 is about 12539.8851270656. The cubic root of 157248719 is about 539.7537960864.

The spelling of 157248719 in words is "one hundred fifty-seven million, two hundred forty-eight thousand, seven hundred nineteen".