133391676 has 96 divisors (see below), whose sum is σ = 353396736. Its totient is φ = 38808000.

The previous prime is 133391663. The next prime is 133391681. The reversal of 133391676 is 676193331.

133391676 = 99² + 100² + ... + 737².

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 402831 + ... + 403161.

It is an arithmetic number, because the mean of its divisors is an integer number (3681216).

Almost surely, 2^133391676 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 133391676, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (176698368).

133391676 is an abundant number, since it is smaller than the sum of its proper divisors (220005060).

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

133391676 is a wasteful number, since it uses less digits than its factorization.

133391676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 463 (or 461 counting only the distinct ones).

The product of its digits is 61236, while the sum is 39.

The square root of 133391676 is about 11549.5314190663. The cubic root of 133391676 is about 510.9474582896.

The spelling of 133391676 in words is "one hundred thirty-three million, three hundred ninety-one thousand, six hundred seventy-six".