126400255 has 8 divisors (see below), whose sum is σ = 159663600. Its totient is φ = 95798016.

The previous prime is 126400247. The next prime is 126400273. The reversal of 126400255 is 552004621.

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 126400255 - 2³ = 126400247 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 665170 + ... + 665359.

It is an arithmetic number, because the mean of its divisors is an integer number (19957950).

Almost surely, 2^126400255 is an apocalyptic number.

126400255 is a deficient number, since it is larger than the sum of its proper divisors (33263345).

126400255 is a wasteful number, since it uses less digits than its factorization.

126400255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1330553.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 126400255 is about 11242.7867986545. The cubic root of 126400255 is about 501.8600783032.

Adding to 126400255 its reverse (552004621), we get a palindrome (678404876).

The spelling of 126400255 in words is "one hundred twenty-six million, four hundred thousand, two hundred fifty-five".