126472739251 has 4 divisors (see below), whose sum is σ = 126474942600. Its totient is φ = 126470535904.

The previous prime is 126472739243. The next prime is 126472739279. The reversal of 126472739251 is 152937274621.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 126472739251 - 2³ = 126472739243 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 126472739195 and 126472739204.

It is not an unprimeable number, because it can be changed into a prime (126472739201) 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, 1013206 + ... + 1131163.

It is an arithmetic number, because the mean of its divisors is an integer number (31618735650).

Almost surely, 2^126472739251 is an apocalyptic number.

126472739251 is a deficient number, since it is larger than the sum of its proper divisors (2203349).

126472739251 is an equidigital number, since it uses as much as digits as its factorization.

126472739251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2203348.

The product of its digits is 1270080, while the sum is 49.

The spelling of 126472739251 in words is "one hundred twenty-six billion, four hundred seventy-two million, seven hundred thirty-nine thousand, two hundred fifty-one".