126651755 has 4 divisors (see below), whose sum is σ = 151982112. Its totient is φ = 101321400.

The previous prime is 126651719. The next prime is 126651757. The reversal of 126651755 is 557156621.

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

It is not a de Polignac number, because 126651755 - 2⁶ = 126651691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126651757) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12665171 + ... + 12665180.

It is an arithmetic number, because the mean of its divisors is an integer number (37995528).

Almost surely, 2^126651755 is an apocalyptic number.

126651755 is a deficient number, since it is larger than the sum of its proper divisors (25330357).

126651755 is an equidigital number, since it uses as much as digits as its factorization.

126651755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25330356.

The product of its digits is 63000, while the sum is 38.

The square root of 126651755 is about 11253.9661897484. The cubic root of 126651755 is about 502.1927099891.

The spelling of 126651755 in words is "one hundred twenty-six million, six hundred fifty-one thousand, seven hundred fifty-five".