133254512957 has 4 divisors (see below), whose sum is σ = 133255282176. Its totient is φ = 133253743740.

The previous prime is 133254512947. The next prime is 133254512977. The reversal of 133254512957 is 759215452331.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 133254512957 - 2¹² = 133254508861 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133254512917) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10628 + ... + 516354.

It is an arithmetic number, because the mean of its divisors is an integer number (33313820544).

Almost surely, 2^133254512957 is an apocalyptic number.

It is an amenable number.

133254512957 is a deficient number, since it is larger than the sum of its proper divisors (769219).

133254512957 is an equidigital number, since it uses as much as digits as its factorization.

133254512957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 769218.

The product of its digits is 1134000, while the sum is 47.

The spelling of 133254512957 in words is "one hundred thirty-three billion, two hundred fifty-four million, five hundred twelve thousand, nine hundred fifty-seven".