133031974 has 8 divisors (see below), whose sum is σ = 205985088. Its totient is φ = 64370280.

The previous prime is 133031963. The next prime is 133031989. The reversal of 133031974 is 479130331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×133031974² = 35395012212673352, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1072777 + ... + 1072900.

It is an arithmetic number, because the mean of its divisors is an integer number (25748136).

Almost surely, 2^133031974 is an apocalyptic number.

133031974 is a deficient number, since it is larger than the sum of its proper divisors (72953114).

133031974 is a wasteful number, since it uses less digits than its factorization.

133031974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2145710.

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

The square root of 133031974 is about 11533.9487600735. The cubic root of 133031974 is about 510.4877737555.

The spelling of 133031974 in words is "one hundred thirty-three million, thirty-one thousand, nine hundred seventy-four".