133261950 has 24 divisors (see below), whose sum is σ = 330490008. Its totient is φ = 35536480.

The previous prime is 133261937. The next prime is 133261979. The reversal of 133261950 is 59162331.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 444057 + ... + 444356.

It is an arithmetic number, because the mean of its divisors is an integer number (13770417).

Almost surely, 2^133261950 is an apocalyptic number.

133261950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

133261950 is an abundant number, since it is smaller than the sum of its proper divisors (197228058).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

133261950 is a wasteful number, since it uses less digits than its factorization.

133261950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 888428 (or 888423 counting only the distinct ones).

The product of its (nonzero) digits is 4860, while the sum is 30.

The square root of 133261950 is about 11543.9139809685. The cubic root of 133261950 is about 510.7817691181.

The spelling of 133261950 in words is "one hundred thirty-three million, two hundred sixty-one thousand, nine hundred fifty".