134217931 has 2 divisors, whose sum is σ = 134217932. Its totient is φ = 134217930.

The previous prime is 134217929. The next prime is 134217943. The reversal of 134217931 is 139712431.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 134217931 - 2¹ = 134217929 is a prime.

It is a super-2 number, since 2×134217931² = 36028906003841522, which contains 22 as substring.

Together with 134217929, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 134217893 and 134217902.

It is not a weakly prime, because it can be changed into another prime (134217131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67108965 + 67108966.

It is an arithmetic number, because the mean of its divisors is an integer number (67108966).

Almost surely, 2^134217931 is an apocalyptic number.

134217931 is a deficient number, since it is larger than the sum of its proper divisors (1).

134217931 is an equidigital number, since it uses as much as digits as its factorization.

134217931 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4536, while the sum is 31.

The square root of 134217931 is about 11585.2462641068. The cubic root of 134217931 is about 512.0002581277. Note that the first 3 decimals are identical.

The spelling of 134217931 in words is "one hundred thirty-four million, two hundred seventeen thousand, nine hundred thirty-one".