126315555 has 32 divisors (see below), whose sum is σ = 208051200. Its totient is φ = 65409792.

The previous prime is 126315551. The next prime is 126315557. The reversal of 126315555 is 555513621.

It is not a de Polignac number, because 126315555 - 2² = 126315551 is a prime.

It is not an unprimeable number, because it can be changed into a prime (126315551) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 97351 + ... + 98639.

It is an arithmetic number, because the mean of its divisors is an integer number (6501600).

Almost surely, 2^126315555 is an apocalyptic number.

126315555 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

126315555 is a deficient number, since it is larger than the sum of its proper divisors (81735645).

126315555 is a wasteful number, since it uses less digits than its factorization.

126315555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1483.

The product of its digits is 22500, while the sum is 33.

The square root of 126315555 is about 11239.0193077510. The cubic root of 126315555 is about 501.7479555155.

The spelling of 126315555 in words is "one hundred twenty-six million, three hundred fifteen thousand, five hundred fifty-five".