126726481 has 16 divisors (see below), whose sum is σ = 156008448. Its totient is φ = 100544400.

The previous prime is 126726421. The next prime is 126726487. The reversal of 126726481 is 184627621.

It is a cyclic number.

It is not a de Polignac number, because 126726481 - 2¹⁵ = 126693713 is a prime.

It is a super-2 number, since 2×126726481² = 32119201973286722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 126726481.

It is not an unprimeable number, because it can be changed into a prime (126726487) 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, 7705 + ... + 17686.

It is an arithmetic number, because the mean of its divisors is an integer number (9750528).

Almost surely, 2^126726481 is an apocalyptic number.

It is an amenable number.

126726481 is a deficient number, since it is larger than the sum of its proper divisors (29281967).

126726481 is a wasteful number, since it uses less digits than its factorization.

126726481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25452.

The product of its digits is 32256, while the sum is 37.

The square root of 126726481 is about 11257.2856852796. The cubic root of 126726481 is about 502.2914570731.

The spelling of 126726481 in words is "one hundred twenty-six million, seven hundred twenty-six thousand, four hundred eighty-one".