158476989 has 8 divisors (see below), whose sum is σ = 230512032. Its totient is φ = 96046640.

The previous prime is 158476949. The next prime is 158477003. The reversal of 158476989 is 989674851.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 158476989 - 2¹⁶ = 158411453 is a prime.

It is a super-2 number, since 2×158476989² = 50229912085012242, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158476939) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2401134 + ... + 2401199.

It is an arithmetic number, because the mean of its divisors is an integer number (28814004).

Almost surely, 2^158476989 is an apocalyptic number.

It is an amenable number.

158476989 is a deficient number, since it is larger than the sum of its proper divisors (72035043).

158476989 is a wasteful number, since it uses less digits than its factorization.

158476989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4802347.

The product of its digits is 4354560, while the sum is 57.

The square root of 158476989 is about 12588.7643952852. The cubic root of 158476989 is about 541.1554921065.

The spelling of 158476989 in words is "one hundred fifty-eight million, four hundred seventy-six thousand, nine hundred eighty-nine".