157424101397 has 2 divisors, whose sum is σ = 157424101398. Its totient is φ = 157424101396.

The previous prime is 157424101349. The next prime is 157424101421. The reversal of 157424101397 is 793101424751.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 89512262596 + 67911838801 = 299186^2 + 260599^2 .

It is a cyclic number.

It is not a de Polignac number, because 157424101397 - 2²² = 157419907093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (157424101337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78712050698 + 78712050699.

It is an arithmetic number, because the mean of its divisors is an integer number (78712050699).

Almost surely, 2^157424101397 is an apocalyptic number.

It is an amenable number.

157424101397 is a deficient number, since it is larger than the sum of its proper divisors (1).

157424101397 is an equidigital number, since it uses as much as digits as its factorization.

157424101397 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 211680, while the sum is 44.

The spelling of 157424101397 in words is "one hundred fifty-seven billion, four hundred twenty-four million, one hundred one thousand, three hundred ninety-seven".