126540419331 has 16 divisors (see below), whose sum is σ = 174079140480. Its totient is φ = 81710594880.

The previous prime is 126540419329. The next prime is 126540419351. The reversal of 126540419331 is 133914045621.

It is not a de Polignac number, because 126540419331 - 2¹ = 126540419329 is a prime.

It is a super-2 number, since 2×126540419331² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 126540419331.

It is not an unprimeable number, because it can be changed into a prime (126540419351) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3683565 + ... + 3717758.

It is an arithmetic number, because the mean of its divisors is an integer number (10879946280).

Almost surely, 2^126540419331 is an apocalyptic number.

126540419331 is a deficient number, since it is larger than the sum of its proper divisors (47538721149).

126540419331 is a wasteful number, since it uses less digits than its factorization.

126540419331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7401506.

The product of its (nonzero) digits is 77760, while the sum is 39.

The spelling of 126540419331 in words is "one hundred twenty-six billion, five hundred forty million, four hundred nineteen thousand, three hundred thirty-one".