158234497369 has 27 divisors (see below), whose sum is σ = 176311917117. Its totient is φ = 141943130784.

The previous prime is 158234497363. The next prime is 158234497397. The reversal of 158234497369 is 963794432851.

It is a happy number.

The square root of 158234497369 is 397787.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 657255769 + 157577241600 = 25637^2 + 396960^2 .

It is not a de Polignac number, because 158234497369 - 2³ = 158234497361 is a prime.

It is a super-2 number, since 2×158234497369² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (158234497361) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 191335134 + ... + 191335960.

Almost surely, 2^158234497369 is an apocalyptic number.

158234497369 is the 397787-th square number.

158234497369 is the 198894-th centered octagonal number.

It is an amenable number.

158234497369 is a deficient number, since it is larger than the sum of its proper divisors (18077419748).

158234497369 is an frugal number, since it uses more digits than its factorization.

158234497369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1754 (or 877 counting only the distinct ones).

The product of its digits is 39191040, while the sum is 61.

The spelling of 158234497369 in words is "one hundred fifty-eight billion, two hundred thirty-four million, four hundred ninety-seven thousand, three hundred sixty-nine".