134251531 has 2 divisors, whose sum is σ = 134251532. Its totient is φ = 134251530.

The previous prime is 134251471. The next prime is 134251543. The reversal of 134251531 is 135152431.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-134251531 is a prime.

It is a super-2 number, since 2×134251531² = 36046947151687922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 134251496 and 134251505.

It is not a weakly prime, because it can be changed into another prime (134251561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67125765 + 67125766.

It is an arithmetic number, because the mean of its divisors is an integer number (67125766).

Almost surely, 2^134251531 is an apocalyptic number.

134251531 is a deficient number, since it is larger than the sum of its proper divisors (1).

134251531 is an equidigital number, since it uses as much as digits as its factorization.

134251531 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1800, while the sum is 25.

The square root of 134251531 is about 11586.6962935947. The cubic root of 134251531 is about 512.0429791293.

The spelling of 134251531 in words is "one hundred thirty-four million, two hundred fifty-one thousand, five hundred thirty-one".