158245389 has 12 divisors (see below), whose sum is σ = 230797216. Its totient is φ = 104472072.

The previous prime is 158245387. The next prime is 158245457. The reversal of 158245389 is 983542851.

It is not a de Polignac number, because 158245389 - 2¹ = 158245387 is a prime.

It is a super-2 number, since 2×158245389² = 50083206279522642, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158245387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 84427 + ... + 86280.

Almost surely, 2^158245389 is an apocalyptic number.

It is an amenable number.

158245389 is a deficient number, since it is larger than the sum of its proper divisors (72551827).

158245389 is a wasteful number, since it uses less digits than its factorization.

158245389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170816 (or 170813 counting only the distinct ones).

The product of its digits is 345600, while the sum is 45.

The square root of 158245389 is about 12579.5623532776. The cubic root of 158245389 is about 540.8917467387.

It can be divided in two parts, 1582 and 45389, that added together give a triangular number (46971 = T₃₀₆).

The spelling of 158245389 in words is "one hundred fifty-eight million, two hundred forty-five thousand, three hundred eighty-nine".