133391076 has 192 divisors, whose sum is σ = 411844608. Its totient is φ = 32643072.

The previous prime is 133391059. The next prime is 133391087. The reversal of 133391076 is 670193331.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1180396 + ... + 1180508.

It is an arithmetic number, because the mean of its divisors is an integer number (2145024).

Almost surely, 2^133391076 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 133391076, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (205922304).

133391076 is an abundant number, since it is smaller than the sum of its proper divisors (278453532).

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

133391076 is a wasteful number, since it uses less digits than its factorization.

133391076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210 (or 208 counting only the distinct ones).

The product of its (nonzero) digits is 10206, while the sum is 33.

The square root of 133391076 is about 11549.5054439573. The cubic root of 133391076 is about 510.9466922025.

The spelling of 133391076 in words is "one hundred thirty-three million, three hundred ninety-one thousand, seventy-six".