126402914381 has 4 divisors (see below), whose sum is σ = 126425123292. Its totient is φ = 126380705472.

The previous prime is 126402914369. The next prime is 126402914419. The reversal of 126402914381 is 183419204621.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 183419204621 = 23 ⋅7974748027.

It can be written as a sum of positive squares in 2 ways, for example, as 34881538756 + 91521375625 = 186766^2 + 302525^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-126402914381 is a prime.

It is a super-2 number, since 2×126402914381² (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 (126402914311) 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, 11095916 + ... + 11107301.

It is an arithmetic number, because the mean of its divisors is an integer number (31606280823).

Almost surely, 2^126402914381 is an apocalyptic number.

It is an amenable number.

126402914381 is a deficient number, since it is larger than the sum of its proper divisors (22208911).

126402914381 is an equidigital number, since it uses as much as digits as its factorization.

126402914381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22208910.

The product of its (nonzero) digits is 82944, while the sum is 41.

The spelling of 126402914381 in words is "one hundred twenty-six billion, four hundred two million, nine hundred fourteen thousand, three hundred eighty-one".