126261566 has 8 divisors (see below), whose sum is σ = 190113264. Its totient is φ = 62890480.

The previous prime is 126261547. The next prime is 126261581. The reversal of 126261566 is 665162621.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 119495 + ... + 120546.

It is an arithmetic number, because the mean of its divisors is an integer number (23764158).

Almost surely, 2^126261566 is an apocalyptic number.

126261566 is a deficient number, since it is larger than the sum of its proper divisors (63851698).

126261566 is a wasteful number, since it uses less digits than its factorization.

126261566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240306.

The product of its digits is 25920, while the sum is 35.

The square root of 126261566 is about 11236.6171955798. The cubic root of 126261566 is about 501.6764606769.

The spelling of 126261566 in words is "one hundred twenty-six million, two hundred sixty-one thousand, five hundred sixty-six".