158070631 has 2 divisors, whose sum is σ = 158070632. Its totient is φ = 158070630.

The previous prime is 158070629. The next prime is 158070659. The reversal of 158070631 is 136070851.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 158070631 - 2¹ = 158070629 is a prime.

It is a super-2 number, since 2×158070631² = 49972648769476322, which contains 22 as substring.

Together with 158070629, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 158070593 and 158070602.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (158070431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79035315 + 79035316.

It is an arithmetic number, because the mean of its divisors is an integer number (79035316).

Almost surely, 2^158070631 is an apocalyptic number.

158070631 is a deficient number, since it is larger than the sum of its proper divisors (1).

158070631 is an equidigital number, since it uses as much as digits as its factorization.

158070631 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 158070631 is about 12572.6143263842. The cubic root of 158070631 is about 540.6925624675.

The spelling of 158070631 in words is "one hundred fifty-eight million, seventy thousand, six hundred thirty-one".