133974031 has 2 divisors, whose sum is σ = 133974032. Its totient is φ = 133974030.

The previous prime is 133974023. The next prime is 133974109. The reversal of 133974031 is 130479331.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 133974031 - 2³ = 133974023 is a prime.

It is a super-2 number, since 2×133974031² = 35898081964777922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 133973984 and 133974002.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133974131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66987015 + 66987016.

It is an arithmetic number, because the mean of its divisors is an integer number (66987016).

Almost surely, 2^133974031 is an apocalyptic number.

133974031 is a deficient number, since it is larger than the sum of its proper divisors (1).

133974031 is an equidigital number, since it uses as much as digits as its factorization.

133974031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6804, while the sum is 31.

The square root of 133974031 is about 11574.7151584823. The cubic root of 133974031 is about 511.6899355046.

The spelling of 133974031 in words is "one hundred thirty-three million, nine hundred seventy-four thousand, thirty-one".