133379780 has 24 divisors (see below), whose sum is σ = 282719808. Its totient is φ = 52852448.

The previous prime is 133379711. The next prime is 133379789. The reversal of 133379780 is 87973331.

It is not an unprimeable number, because it can be changed into a prime (133379789) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29024 + ... + 33303.

It is an arithmetic number, because the mean of its divisors is an integer number (11779992).

Almost surely, 2^133379780 is an apocalyptic number.

133379780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133379780 is an abundant number, since it is smaller than the sum of its proper divisors (149340028).

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

133379780 is a wasteful number, since it uses less digits than its factorization.

133379780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62443 (or 62441 counting only the distinct ones).

The product of its (nonzero) digits is 95256, while the sum is 41.

The square root of 133379780 is about 11549.0164083354. The cubic root of 133379780 is about 510.9322689068.

The spelling of 133379780 in words is "one hundred thirty-three million, three hundred seventy-nine thousand, seven hundred eighty".