157973863 has 2 divisors, whose sum is σ = 157973864. Its totient is φ = 157973862.

The previous prime is 157973833. The next prime is 157973891. The reversal of 157973863 is 368379751.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-157973863 is a prime.

It is a super-2 number, since 2×157973863² = 49911482782285538, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (157973833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78986931 + 78986932.

It is an arithmetic number, because the mean of its divisors is an integer number (78986932).

Almost surely, 2^157973863 is an apocalyptic number.

157973863 is a deficient number, since it is larger than the sum of its proper divisors (1).

157973863 is an equidigital number, since it uses as much as digits as its factorization.

157973863 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 952560, while the sum is 49.

The square root of 157973863 is about 12568.7653729394. The cubic root of 157973863 is about 540.5822058545.

The spelling of 157973863 in words is "one hundred fifty-seven million, nine hundred seventy-three thousand, eight hundred sixty-three".