158394076031 has 4 divisors (see below), whose sum is σ = 159795793632. Its totient is φ = 156992358432.

The previous prime is 158394076019. The next prime is 158394076033. The reversal of 158394076031 is 130670493851.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 130670493851 = 31 ⋅4215177221.

It is a cyclic number.

It is not a de Polignac number, because 158394076031 - 2⁶ = 158394075967 is a prime.

It is a super-2 number, since 2×158394076031² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158394076033) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 700858631 + ... + 700858856.

It is an arithmetic number, because the mean of its divisors is an integer number (39948948408).

Almost surely, 2^158394076031 is an apocalyptic number.

158394076031 is a deficient number, since it is larger than the sum of its proper divisors (1401717601).

158394076031 is a wasteful number, since it uses less digits than its factorization.

158394076031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1401717600.

The product of its (nonzero) digits is 544320, while the sum is 47.

The spelling of 158394076031 in words is "one hundred fifty-eight billion, three hundred ninety-four million, seventy-six thousand, thirty-one".