133457881371 has 8 divisors (see below), whose sum is σ = 179138096400. Its totient is φ = 88374793632.

The previous prime is 133457881367. The next prime is 133457881411. The reversal of 133457881371 is 173188754331.

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

It is not a de Polignac number, because 133457881371 - 2² = 133457881367 is a prime.

It is a super-2 number, since 2×133457881371² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (133457881321) 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, 149281300 + ... + 149282193.

It is an arithmetic number, because the mean of its divisors is an integer number (22392262050).

Almost surely, 2^133457881371 is an apocalyptic number.

133457881371 is a deficient number, since it is larger than the sum of its proper divisors (45680215029).

133457881371 is a wasteful number, since it uses less digits than its factorization.

133457881371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298563645.

The product of its digits is 1693440, while the sum is 51.

The spelling of 133457881371 in words is "one hundred thirty-three billion, four hundred fifty-seven million, eight hundred eighty-one thousand, three hundred seventy-one".