158664503 has 2 divisors, whose sum is σ = 158664504. Its totient is φ = 158664502.

The previous prime is 158664487. The next prime is 158664559. The reversal of 158664503 is 305466851.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 158664503 - 2⁴ = 158664487 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 (158664593) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79332251 + 79332252.

It is an arithmetic number, because the mean of its divisors is an integer number (79332252).

Almost surely, 2^158664503 is an apocalyptic number.

158664503 is a deficient number, since it is larger than the sum of its proper divisors (1).

158664503 is an equidigital number, since it uses as much as digits as its factorization.

158664503 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 86400, while the sum is 38.

The square root of 158664503 is about 12596.2098664638. The cubic root of 158664503 is about 541.3688442901.

The spelling of 158664503 in words is "one hundred fifty-eight million, six hundred sixty-four thousand, five hundred three".