158298231 has 32 divisors (see below), whose sum is σ = 260789760. Its totient is φ = 83170944.

The previous prime is 158298221. The next prime is 158298251. The reversal of 158298231 is 132892851.

It is not a de Polignac number, because 158298231 - 2¹⁵ = 158265463 is a prime.

It is a super-2 number, since 2×158298231² = 50116659875458722, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 158298231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158298221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 79000 + ... + 80978.

It is an arithmetic number, because the mean of its divisors is an integer number (8149680).

Almost surely, 2^158298231 is an apocalyptic number.

158298231 is a deficient number, since it is larger than the sum of its proper divisors (102491529).

158298231 is a wasteful number, since it uses less digits than its factorization.

158298231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2295.

The product of its digits is 34560, while the sum is 39.

The square root of 158298231 is about 12581.6624895123. The cubic root of 158298231 is about 540.9519456932.

The spelling of 158298231 in words is "one hundred fifty-eight million, two hundred ninety-eight thousand, two hundred thirty-one".