133451950 has 24 divisors (see below), whose sum is σ = 250640208. Its totient is φ = 52860480.

The previous prime is 133451909. The next prime is 133451951. The reversal of 133451950 is 59154331.

It is a happy number.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133451951) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7807 + ... + 18106.

It is an arithmetic number, because the mean of its divisors is an integer number (10443342).

Almost surely, 2^133451950 is an apocalyptic number.

133451950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

133451950 is a deficient number, since it is larger than the sum of its proper divisors (117188258).

133451950 is a wasteful number, since it uses less digits than its factorization.

133451950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26028 (or 26023 counting only the distinct ones).

The product of its (nonzero) digits is 8100, while the sum is 31.

The square root of 133451950 is about 11552.1404942980. The cubic root of 133451950 is about 511.0244051441.

The spelling of 133451950 in words is "one hundred thirty-three million, four hundred fifty-one thousand, nine hundred fifty".