134251631 has 2 divisors, whose sum is σ = 134251632. Its totient is φ = 134251630.

The previous prime is 134251627. The next prime is 134251639. The reversal of 134251631 is 136152431.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 134251631 - 2² = 134251627 is a prime.

It is a super-2 number, since 2×134251631² = 36047000852320322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 134251631.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (134251639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67125815 + 67125816.

It is an arithmetic number, because the mean of its divisors is an integer number (67125816).

Almost surely, 2^134251631 is an apocalyptic number.

134251631 is a deficient number, since it is larger than the sum of its proper divisors (1).

134251631 is an equidigital number, since it uses as much as digits as its factorization.

134251631 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2160, while the sum is 26.

The square root of 134251631 is about 11586.7006088878. The cubic root of 134251631 is about 512.0431062645.

The spelling of 134251631 in words is "one hundred thirty-four million, two hundred fifty-one thousand, six hundred thirty-one".