126132521439 has 32 divisors (see below), whose sum is σ = 176205254400. Its totient is φ = 80149870080.

The previous prime is 126132521399. The next prime is 126132521441. The reversal of 126132521439 is 934125231621.

It is not a de Polignac number, because 126132521439 - 2¹⁶ = 126132455903 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 126132521397 and 126132521406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126132525439) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10746204 + ... + 10757934.

It is an arithmetic number, because the mean of its divisors is an integer number (5506414200).

Almost surely, 2^126132521439 is an apocalyptic number.

126132521439 is a deficient number, since it is larger than the sum of its proper divisors (50072732961).

126132521439 is a wasteful number, since it uses less digits than its factorization.

126132521439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13335.

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

The spelling of 126132521439 in words is "one hundred twenty-six billion, one hundred thirty-two million, five hundred twenty-one thousand, four hundred thirty-nine".