133874731 has 2 divisors, whose sum is σ = 133874732. Its totient is φ = 133874730.

The previous prime is 133874729. The next prime is 133874737. The reversal of 133874731 is 137478331.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 133874731 - 2¹ = 133874729 is a prime.

It is a super-2 number, since 2×133874731² = 35844887200644722, which contains 22 as substring.

Together with 133874729, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (133874737) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66937365 + 66937366.

It is an arithmetic number, because the mean of its divisors is an integer number (66937366).

Almost surely, 2^133874731 is an apocalyptic number.

133874731 is a deficient number, since it is larger than the sum of its proper divisors (1).

133874731 is an equidigital number, since it uses as much as digits as its factorization.

133874731 is an evil number, because the sum of its binary digits is even.

The product of its digits is 42336, while the sum is 37.

The square root of 133874731 is about 11570.4248409469. The cubic root of 133874731 is about 511.5634847070.

The spelling of 133874731 in words is "one hundred thirty-three million, eight hundred seventy-four thousand, seven hundred thirty-one".