158941633 has 2 divisors, whose sum is σ = 158941634. Its totient is φ = 158941632.

The previous prime is 158941591. The next prime is 158941667. The reversal of 158941633 is 336149851.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 158936449 + 5184 = 12607^2 + 72^2 .

It is an emirp because it is prime and its reverse (336149851) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-158941633 is a prime.

It is not a weakly prime, because it can be changed into another prime (158941033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79470816 + 79470817.

It is an arithmetic number, because the mean of its divisors is an integer number (79470817).

Almost surely, 2^158941633 is an apocalyptic number.

It is an amenable number.

158941633 is a deficient number, since it is larger than the sum of its proper divisors (1).

158941633 is an equidigital number, since it uses as much as digits as its factorization.

158941633 is an evil number, because the sum of its binary digits is even.

The product of its digits is 77760, while the sum is 40.

The square root of 158941633 is about 12607.2055983870. The cubic root of 158941633 is about 541.6838533824.

The spelling of 158941633 in words is "one hundred fifty-eight million, nine hundred forty-one thousand, six hundred thirty-three".