133896507 has 8 divisors (see below), whose sum is σ = 178603584. Its totient is φ = 89226888.

The previous prime is 133896487. The next prime is 133896517. The reversal of 133896507 is 705698331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 133896507 - 2⁸ = 133896251 is a prime.

It is not an unprimeable number, because it can be changed into a prime (133896517) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 448 + ... + 16370.

It is an arithmetic number, because the mean of its divisors is an integer number (22325448).

Almost surely, 2^133896507 is an apocalyptic number.

133896507 is a deficient number, since it is larger than the sum of its proper divisors (44707077).

133896507 is a wasteful number, since it uses less digits than its factorization.

133896507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18729.

The product of its (nonzero) digits is 136080, while the sum is 42.

The square root of 133896507 is about 11571.3658225812. The cubic root of 133896507 is about 511.5912200942.

The spelling of 133896507 in words is "one hundred thirty-three million, eight hundred ninety-six thousand, five hundred seven".