158829389 has 2 divisors, whose sum is σ = 158829390. Its totient is φ = 158829388.

The previous prime is 158829373. The next prime is 158829413. The reversal of 158829389 is 983928851.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 158634025 + 195364 = 12595^2 + 442^2 .

It is a cyclic number.

It is not a de Polignac number, because 158829389 - 2⁴ = 158829373 is a prime.

It is a super-2 number, since 2×158829389² = 50453549620226642, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 158829389.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (158829289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79414694 + 79414695.

It is an arithmetic number, because the mean of its divisors is an integer number (79414695).

Almost surely, 2^158829389 is an apocalyptic number.

It is an amenable number.

158829389 is a deficient number, since it is larger than the sum of its proper divisors (1).

158829389 is an equidigital number, since it uses as much as digits as its factorization.

158829389 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1244160, while the sum is 53.

The square root of 158829389 is about 12602.7532309412. The cubic root of 158829389 is about 541.5563116357.

The spelling of 158829389 in words is "one hundred fifty-eight million, eight hundred twenty-nine thousand, three hundred eighty-nine".