158334187 has 6 divisors (see below), whose sum is σ = 174036884. Its totient is φ = 143940060.

The previous prime is 158334157. The next prime is 158334191. The reversal of 158334187 is 781433851.

It is not a de Polignac number, because 158334187 - 2¹⁵ = 158301419 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (158334157) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 654153 + ... + 654394.

Almost surely, 2^158334187 is an apocalyptic number.

158334187 is a deficient number, since it is larger than the sum of its proper divisors (15702697).

158334187 is a wasteful number, since it uses less digits than its factorization.

158334187 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1308569 (or 1308558 counting only the distinct ones).

The product of its digits is 80640, while the sum is 40.

The square root of 158334187 is about 12583.0913133459. The cubic root of 158334187 is about 540.9929000267.

The spelling of 158334187 in words is "one hundred fifty-eight million, three hundred thirty-four thousand, one hundred eighty-seven".