126513900139 has 8 divisors (see below), whose sum is σ = 138230483760. Its totient is φ = 114833203200.

The previous prime is 126513900133. The next prime is 126513900157. The reversal of 126513900139 is 931009315621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 126513900139 - 2¹⁵ = 126513867371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126513900133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8964294 + ... + 8978395.

It is an arithmetic number, because the mean of its divisors is an integer number (17278810470).

Almost surely, 2^126513900139 is an apocalyptic number.

126513900139 is a deficient number, since it is larger than the sum of its proper divisors (11716583621).

126513900139 is a wasteful number, since it uses less digits than its factorization.

126513900139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17943341.

The product of its (nonzero) digits is 43740, while the sum is 40.

The spelling of 126513900139 in words is "one hundred twenty-six billion, five hundred thirteen million, nine hundred thousand, one hundred thirty-nine".