126630655 has 4 divisors (see below), whose sum is σ = 151956792. Its totient is φ = 101304520.

The previous prime is 126630593. The next prime is 126630689. The reversal of 126630655 is 556036621.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 126630655 - 2¹⁹ = 126106367 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 126630655.

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, 12663061 + ... + 12663070.

It is an arithmetic number, because the mean of its divisors is an integer number (37989198).

Almost surely, 2^126630655 is an apocalyptic number.

126630655 is a deficient number, since it is larger than the sum of its proper divisors (25326137).

126630655 is an equidigital number, since it uses as much as digits as its factorization.

126630655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25326136.

The product of its (nonzero) digits is 32400, while the sum is 34.

The square root of 126630655 is about 11253.0287034202. The cubic root of 126630655 is about 502.1648202462.

The spelling of 126630655 in words is "one hundred twenty-six million, six hundred thirty thousand, six hundred fifty-five".