157866263 has 2 divisors, whose sum is σ = 157866264. Its totient is φ = 157866262.

The previous prime is 157866257. The next prime is 157866281. The reversal of 157866263 is 362668751.

157866263 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 is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-157866263 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 (157866463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78933131 + 78933132.

It is an arithmetic number, because the mean of its divisors is an integer number (78933132).

Almost surely, 2^157866263 is an apocalyptic number.

157866263 is a deficient number, since it is larger than the sum of its proper divisors (1).

157866263 is an equidigital number, since it uses as much as digits as its factorization.

157866263 is an evil number, because the sum of its binary digits is even.

The product of its digits is 362880, while the sum is 44.

The square root of 157866263 is about 12564.4841915615. The cubic root of 157866263 is about 540.4594432331.

The spelling of 157866263 in words is "one hundred fifty-seven million, eight hundred sixty-six thousand, two hundred sixty-three".