997360157 has 2 divisors, whose sum is σ = 997360158. Its totient is φ = 997360156.

The previous prime is 997360151. The next prime is 997360181. The reversal of 997360157 is 751063799.

It is a happy number.

997360157 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 749171641 + 248188516 = 27371^2 + 15754^2 .

It is a cyclic number.

It is not a de Polignac number, because 997360157 - 2¹⁰ = 997359133 is a 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 (997360151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 498680078 + 498680079.

It is an arithmetic number, because the mean of its divisors is an integer number (498680079).

Almost surely, 2^997360157 is an apocalyptic number.

It is an amenable number.

997360157 is a deficient number, since it is larger than the sum of its proper divisors (1).

997360157 is an equidigital number, since it uses as much as digits as its factorization.

997360157 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 357210, while the sum is 47.

The square root of 997360157 is about 31581.0094360519. The cubic root of 997360157 is about 999.1192768879.

The spelling of 997360157 in words is "nine hundred ninety-seven million, three hundred sixty thousand, one hundred fifty-seven".