158394287 has 8 divisors (see below), whose sum is σ = 167842656. Its totient is φ = 148960512.

The previous prime is 158394239. The next prime is 158394311. The reversal of 158394287 is 782493851.

It is a happy number.

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 158394287 - 2²⁴ = 141617071 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 (158394217) 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, 25358 + ... + 30980.

It is an arithmetic number, because the mean of its divisors is an integer number (20980332).

Almost surely, 2^158394287 is an apocalyptic number.

158394287 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

158394287 is a deficient number, since it is larger than the sum of its proper divisors (9448369).

158394287 is a wasteful number, since it uses less digits than its factorization.

158394287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7297.

The product of its digits is 483840, while the sum is 47.

The square root of 158394287 is about 12585.4792121715. The cubic root of 158394287 is about 541.0613408374.

The spelling of 158394287 in words is "one hundred fifty-eight million, three hundred ninety-four thousand, two hundred eighty-seven".