126968497 has 8 divisors (see below), whose sum is σ = 130566632. Its totient is φ = 123379200.

The previous prime is 126968477. The next prime is 126968509. The reversal of 126968497 is 794869621.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 64384576 + 62583921 = 8024^2 + 7911^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 126968497 - 2¹⁵ = 126935729 is a prime.

It is a super-2 number, since 2×126968497² = 32241998460878018, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126968477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36097 + ... + 39457.

It is an arithmetic number, because the mean of its divisors is an integer number (16320829).

Almost surely, 2^126968497 is an apocalyptic number.

It is an amenable number.

126968497 is a deficient number, since it is larger than the sum of its proper divisors (3598135).

126968497 is a wasteful number, since it uses less digits than its factorization.

126968497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4419.

The product of its digits is 1306368, while the sum is 52.

The square root of 126968497 is about 11268.0298632902. The cubic root of 126968497 is about 502.6110042468.

The spelling of 126968497 in words is "one hundred twenty-six million, nine hundred sixty-eight thousand, four hundred ninety-seven".