133157612217 has 16 divisors (see below), whose sum is σ = 205764682752. Its totient is φ = 75018372240.

The previous prime is 133157612213. The next prime is 133157612221. The reversal of 133157612217 is 712216751331.

It is an interprime number because it is at equal distance from previous prime (133157612213) and next prime (133157612221).

It is not a de Polignac number, because 133157612217 - 2² = 133157612213 is a prime.

It is not an unprimeable number, because it can be changed into a prime (133157612213) 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, 44652303 + ... + 44655284.

It is an arithmetic number, because the mean of its divisors is an integer number (12860292672).

Almost surely, 2^133157612217 is an apocalyptic number.

It is an amenable number.

133157612217 is a deficient number, since it is larger than the sum of its proper divisors (72607070535).

133157612217 is an equidigital number, since it uses as much as digits as its factorization.

133157612217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89307668.

The product of its digits is 52920, while the sum is 39.

The spelling of 133157612217 in words is "one hundred thirty-three billion, one hundred fifty-seven million, six hundred twelve thousand, two hundred seventeen".