126727497 has 20 divisors (see below), whose sum is σ = 203872900. Its totient is φ = 77985504.

The previous prime is 126727487. The next prime is 126727501. The reversal of 126727497 is 794727621.

It can be written as a sum of positive squares in 2 ways, for example, as 48776256 + 77951241 = 6984^2 + 8829^2 .

It is not a de Polignac number, because 126727497 - 2⁸ = 126727241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126727487) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 59122 + ... + 61227.

It is an arithmetic number, because the mean of its divisors is an integer number (10193645).

Almost surely, 2^126727497 is an apocalyptic number.

It is an amenable number.

126727497 is a deficient number, since it is larger than the sum of its proper divisors (77145403).

126727497 is a wasteful number, since it uses less digits than its factorization.

126727497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120374 (or 120365 counting only the distinct ones).

The product of its digits is 296352, while the sum is 45.

The square root of 126727497 is about 11257.3308115201. The cubic root of 126727497 is about 502.2927994043.

The spelling of 126727497 in words is "one hundred twenty-six million, seven hundred twenty-seven thousand, four hundred ninety-seven".