133787088 has 30 divisors (see below), whose sum is σ = 374418434. Its totient is φ = 44595648.

The previous prime is 133787077. The next prime is 133787107. The reversal of 133787088 is 880787331.

It can be written as a sum of positive squares in only one way, i.e., 118200384 + 15586704 = 10872^2 + 3948^2 .

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 5 ways as a sum of consecutive naturals, for example, 464395 + ... + 464682.

Almost surely, 2^133787088 is an apocalyptic number.

133787088 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

133787088 is an abundant number, since it is smaller than the sum of its proper divisors (240631346).

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

133787088 is a wasteful number, since it uses less digits than its factorization.

133787088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 929091 (or 929082 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 45.

The square root of 133787088 is about 11566.6368491450. The cubic root of 133787088 is about 511.4518262293.

The spelling of 133787088 in words is "one hundred thirty-three million, seven hundred eighty-seven thousand, eighty-eight".