158498397 has 8 divisors (see below), whose sum is σ = 234812480. Its totient is φ = 105665580.

The previous prime is 158498371. The next prime is 158498407. The reversal of 158498397 is 793894851.

It is not a de Polignac number, because 158498397 - 2²³ = 150109789 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158498597) 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 7 ways as a sum of consecutive naturals, for example, 2935129 + ... + 2935182.

It is an arithmetic number, because the mean of its divisors is an integer number (29351560).

Almost surely, 2^158498397 is an apocalyptic number.

It is an amenable number.

158498397 is a deficient number, since it is larger than the sum of its proper divisors (76314083).

158498397 is an equidigital number, since it uses as much as digits as its factorization.

158498397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5870320 (or 5870314 counting only the distinct ones).

The product of its digits is 2177280, while the sum is 54.

The square root of 158498397 is about 12589.6146485903. The cubic root of 158498397 is about 541.1798584940.

The spelling of 158498397 in words is "one hundred fifty-eight million, four hundred ninety-eight thousand, three hundred ninety-seven".