158177963 has 2 divisors, whose sum is σ = 158177964. Its totient is φ = 158177962.

The previous prime is 158177927. The next prime is 158178011. The reversal of 158177963 is 369771851.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 158177963 - 2¹⁰ = 158176939 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (158177363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79088981 + 79088982.

It is an arithmetic number, because the mean of its divisors is an integer number (79088982).

Almost surely, 2^158177963 is an apocalyptic number.

158177963 is a deficient number, since it is larger than the sum of its proper divisors (1).

158177963 is an equidigital number, since it uses as much as digits as its factorization.

158177963 is an evil number, because the sum of its binary digits is even.

The product of its digits is 317520, while the sum is 47.

The square root of 158177963 is about 12576.8820857954. The cubic root of 158177963 is about 540.8149138566.

The spelling of 158177963 in words is "one hundred fifty-eight million, one hundred seventy-seven thousand, nine hundred sixty-three".