133157563 has 16 divisors (see below), whose sum is σ = 166959360. Its totient is φ = 103168800.

The previous prime is 133157551. The next prime is 133157573. The reversal of 133157563 is 365751331.

It is a de Polignac number, because none of the positive numbers 2^k-133157563 is a prime.

It is a super-4 number, since 4×133157563⁴ (a number of 34 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133157503) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8953 + ... + 18613.

It is an arithmetic number, because the mean of its divisors is an integer number (10434960).

Almost surely, 2^133157563 is an apocalyptic number.

133157563 is a deficient number, since it is larger than the sum of its proper divisors (33801797).

133157563 is a wasteful number, since it uses less digits than its factorization.

133157563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9858.

The product of its digits is 28350, while the sum is 34.

The square root of 133157563 is about 11539.3917950644. The cubic root of 133157563 is about 510.6483654357.

The spelling of 133157563 in words is "one hundred thirty-three million, one hundred fifty-seven thousand, five hundred sixty-three".