157146315797 has 2 divisors, whose sum is σ = 157146315798. Its totient is φ = 157146315796.

The previous prime is 157146315779. The next prime is 157146315863. The reversal of 157146315797 is 797513641751.

Together with previous prime (157146315779) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 79999031281 + 77147284516 = 282841^2 + 277754^2 .

It is a cyclic number.

It is not a de Polignac number, because 157146315797 - 2¹⁴ = 157146299413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (157146315757) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78573157898 + 78573157899.

It is an arithmetic number, because the mean of its divisors is an integer number (78573157899).

Almost surely, 2^157146315797 is an apocalyptic number.

It is an amenable number.

157146315797 is a deficient number, since it is larger than the sum of its proper divisors (1).

157146315797 is an equidigital number, since it uses as much as digits as its factorization.

157146315797 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5556600, while the sum is 56.

The spelling of 157146315797 in words is "one hundred fifty-seven billion, one hundred forty-six million, three hundred fifteen thousand, seven hundred ninety-seven".