158890553 has 2 divisors, whose sum is σ = 158890554. Its totient is φ = 158890552.

The previous prime is 158890549. The next prime is 158890579. The reversal of 158890553 is 355098851.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 142014889 + 16875664 = 11917^2 + 4108^2 .

It is an emirp because it is prime and its reverse (355098851) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 158890553 - 2² = 158890549 is a prime.

It is not a weakly prime, because it can be changed into another prime (158890583) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79445276 + 79445277.

It is an arithmetic number, because the mean of its divisors is an integer number (79445277).

Almost surely, 2^158890553 is an apocalyptic number.

It is an amenable number.

158890553 is a deficient number, since it is larger than the sum of its proper divisors (1).

158890553 is an equidigital number, since it uses as much as digits as its factorization.

158890553 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216000, while the sum is 44.

The square root of 158890553 is about 12605.1796099857. The cubic root of 158890553 is about 541.6258191314.

The spelling of 158890553 in words is "one hundred fifty-eight million, eight hundred ninety thousand, five hundred fifty-three".