126281397 has 16 divisors (see below), whose sum is σ = 184200192. Its totient is φ = 76318320.

The previous prime is 126281377. The next prime is 126281437. The reversal of 126281397 is 793182621.

It is not a de Polignac number, because 126281397 - 2¹⁸ = 126019253 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126281317) 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, 6898 + ... + 17324.

It is an arithmetic number, because the mean of its divisors is an integer number (11512512).

Almost surely, 2^126281397 is an apocalyptic number.

It is an amenable number.

126281397 is a deficient number, since it is larger than the sum of its proper divisors (57918795).

126281397 is a wasteful number, since it uses less digits than its factorization.

126281397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10808.

The product of its digits is 36288, while the sum is 39.

The square root of 126281397 is about 11237.4995884316. The cubic root of 126281397 is about 501.7027242116.

The spelling of 126281397 in words is "one hundred twenty-six million, two hundred eighty-one thousand, three hundred ninety-seven".