126516255 has 16 divisors (see below), whose sum is σ = 202577760. Its totient is φ = 67424768.

The previous prime is 126516253. The next prime is 126516287. The reversal of 126516255 is 552615621.

It is a cyclic number.

It is not a de Polignac number, because 126516255 - 2¹ = 126516253 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126516251) 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, 26491 + ... + 30899.

It is an arithmetic number, because the mean of its divisors is an integer number (12661110).

Almost surely, 2^126516255 is an apocalyptic number.

126516255 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

126516255 is a deficient number, since it is larger than the sum of its proper divisors (76061505).

126516255 is a wasteful number, since it uses less digits than its factorization.

126516255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6330.

The product of its digits is 18000, while the sum is 33.

The square root of 126516255 is about 11247.9444788815. The cubic root of 126516255 is about 502.0135536517.

The spelling of 126516255 in words is "one hundred twenty-six million, five hundred sixteen thousand, two hundred fifty-five".