126261655 has 8 divisors (see below), whose sum is σ = 163168992. Its totient is φ = 93239328.

The previous prime is 126261647. The next prime is 126261661. The reversal of 126261655 is 556162621.

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

It is not a de Polignac number, because 126261655 - 2³ = 126261647 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 126261655.

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, 971179 + ... + 971308.

It is an arithmetic number, because the mean of its divisors is an integer number (20396124).

Almost surely, 2^126261655 is an apocalyptic number.

126261655 is a deficient number, since it is larger than the sum of its proper divisors (36907337).

126261655 is a wasteful number, since it uses less digits than its factorization.

126261655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1942505.

The product of its digits is 21600, while the sum is 34.

The square root of 126261655 is about 11236.6211558457. The cubic root of 126261655 is about 501.6765785518.

The spelling of 126261655 in words is "one hundred twenty-six million, two hundred sixty-one thousand, six hundred fifty-five".