157448399 has 2 divisors, whose sum is σ = 157448400. Its totient is φ = 157448398.

The previous prime is 157448359. The next prime is 157448443. The reversal of 157448399 is 993844751.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 157448399 - 2⁸ = 157448143 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (157448329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78724199 + 78724200.

It is an arithmetic number, because the mean of its divisors is an integer number (78724200).

Almost surely, 2^157448399 is an apocalyptic number.

157448399 is a deficient number, since it is larger than the sum of its proper divisors (1).

157448399 is an equidigital number, since it uses as much as digits as its factorization.

157448399 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1088640, while the sum is 50.

The square root of 157448399 is about 12547.8443965488. The cubic root of 157448399 is about 539.9821656204.

The spelling of 157448399 in words is "one hundred fifty-seven million, four hundred forty-eight thousand, three hundred ninety-nine".