158772433 has 2 divisors, whose sum is σ = 158772434. Its totient is φ = 158772432.

The previous prime is 158772403. The next prime is 158772457. The reversal of 158772433 is 334277851.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 90098064 + 68674369 = 9492^2 + 8287^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-158772433 is a prime.

It is not a weakly prime, because it can be changed into another prime (158772403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79386216 + 79386217.

It is an arithmetic number, because the mean of its divisors is an integer number (79386217).

Almost surely, 2^158772433 is an apocalyptic number.

It is an amenable number.

158772433 is a deficient number, since it is larger than the sum of its proper divisors (1).

158772433 is an equidigital number, since it uses as much as digits as its factorization.

158772433 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 141120, while the sum is 40.

The square root of 158772433 is about 12600.4933633568. The cubic root of 158772433 is about 541.4915701140.

The spelling of 158772433 in words is "one hundred fifty-eight million, seven hundred seventy-two thousand, four hundred thirty-three".