126314729403 has 16 divisors (see below), whose sum is σ = 171298229760. Its totient is φ = 82770924896.

The previous prime is 126314729399. The next prime is 126314729413. The reversal of 126314729403 is 304927413621.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 126314729403 - 2² = 126314729399 is a prime.

It is a super-2 number, since 2×126314729403² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (126314729413) 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, 1321501 + ... + 1413857.

It is an arithmetic number, because the mean of its divisors is an integer number (10706139360).

Almost surely, 2^126314729403 is an apocalyptic number.

126314729403 is a deficient number, since it is larger than the sum of its proper divisors (44983500357).

126314729403 is an equidigital number, since it uses as much as digits as its factorization.

126314729403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100146.

The product of its (nonzero) digits is 217728, while the sum is 42.

The spelling of 126314729403 in words is "one hundred twenty-six billion, three hundred fourteen million, seven hundred twenty-nine thousand, four hundred three".