133706577431 has 8 divisors (see below), whose sum is σ = 157736792064. Its totient is φ = 110908681560.

The previous prime is 133706577269. The next prime is 133706577463. The reversal of 133706577431 is 134775607331.

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

It is a cyclic number.

It is not a de Polignac number, because 133706577431 - 2¹⁴ = 133706561047 is a prime.

It is a super-2 number, since 2×133706577431² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133706577031) 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, 308079455 + ... + 308079888.

It is an arithmetic number, because the mean of its divisors is an integer number (19717099008).

Almost surely, 2^133706577431 is an apocalyptic number.

133706577431 is a deficient number, since it is larger than the sum of its proper divisors (24030214633).

133706577431 is an equidigital number, since it uses as much as digits as its factorization.

133706577431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 616159381.

The product of its (nonzero) digits is 1111320, while the sum is 47.

The spelling of 133706577431 in words is "one hundred thirty-three billion, seven hundred six million, five hundred seventy-seven thousand, four hundred thirty-one".