126280347097 has 4 divisors (see below), whose sum is σ = 127084680676. Its totient is φ = 125476013520.

The previous prime is 126280347071. The next prime is 126280347107. The reversal of 126280347097 is 790743082621.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 15372032256 + 110908314841 = 123984^2 + 333029^2 .

It is a cyclic number.

It is not a de Polignac number, because 126280347097 - 2²³ = 126271958489 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 126280347097.

It is not an unprimeable number, because it can be changed into a prime (126280357097) 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, 402166554 + ... + 402166867.

It is an arithmetic number, because the mean of its divisors is an integer number (31771170169).

Almost surely, 2^126280347097 is an apocalyptic number.

It is an amenable number.

126280347097 is a deficient number, since it is larger than the sum of its proper divisors (804333579).

126280347097 is an equidigital number, since it uses as much as digits as its factorization.

126280347097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 804333578.

The product of its (nonzero) digits is 1016064, while the sum is 49.

The spelling of 126280347097 in words is "one hundred twenty-six billion, two hundred eighty million, three hundred forty-seven thousand, ninety-seven".