133138737180 has 48 divisors (see below), whose sum is σ = 414209406240. Its totient is φ = 35503663104.

The previous prime is 133138737161. The next prime is 133138737203. The reversal of 133138737180 is 81737831331.

It is a super-2 number, since 2×133138737180² (a number of 23 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 123276069 + ... + 123277148.

It is an arithmetic number, because the mean of its divisors is an integer number (8629362630).

Almost surely, 2^133138737180 is an apocalyptic number.

133138737180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133138737180 is an abundant number, since it is smaller than the sum of its proper divisors (281070669060).

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

133138737180 is a wasteful number, since it uses less digits than its factorization.

133138737180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246553235 (or 246553227 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 45.

The spelling of 133138737180 in words is "one hundred thirty-three billion, one hundred thirty-eight million, seven hundred thirty-seven thousand, one hundred eighty".