133137499 has 4 divisors (see below), whose sum is σ = 145240920. Its totient is φ = 121034080.

The previous prime is 133137479. The next prime is 133137517. The reversal of 133137499 is 994731331.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 133137499 - 2⁷ = 133137371 is a prime.

It is not an unprimeable number, because it can be changed into a prime (133137419) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 6051694 + ... + 6051715.

It is an arithmetic number, because the mean of its divisors is an integer number (36310230).

Almost surely, 2^133137499 is an apocalyptic number.

133137499 is a deficient number, since it is larger than the sum of its proper divisors (12103421).

133137499 is a wasteful number, since it uses less digits than its factorization.

133137499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12103420.

The product of its digits is 61236, while the sum is 40.

The square root of 133137499 is about 11538.5223924036. The cubic root of 133137499 is about 510.6227162143.

The spelling of 133137499 in words is "one hundred thirty-three million, one hundred thirty-seven thousand, four hundred ninety-nine".