126896964133 has 4 divisors (see below), whose sum is σ = 126900519148. Its totient is φ = 126893409120.

The previous prime is 126896964119. The next prime is 126896964137. The reversal of 126896964133 is 331469698621.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 54187459524 + 72709504609 = 232782^2 + 269647^2 .

It is a cyclic number.

It is not a de Polignac number, because 126896964133 - 2³³ = 118307029541 is a prime.

It is a super-2 number, since 2×126896964133² (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 (126896964137) 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, 1723416 + ... + 1795537.

It is an arithmetic number, because the mean of its divisors is an integer number (31725129787).

Almost surely, 2^126896964133 is an apocalyptic number.

It is an amenable number.

126896964133 is a deficient number, since it is larger than the sum of its proper divisors (3555015).

126896964133 is an equidigital number, since it uses as much as digits as its factorization.

126896964133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3555014.

The product of its digits is 10077696, while the sum is 58.

The spelling of 126896964133 in words is "one hundred twenty-six billion, eight hundred ninety-six million, nine hundred sixty-four thousand, one hundred thirty-three".