126655143 has 4 divisors (see below), whose sum is σ = 168873528. Its totient is φ = 84436760.

The previous prime is 126655129. The next prime is 126655147. The reversal of 126655143 is 341556621.

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

It is a cyclic number.

It is not a de Polignac number, because 126655143 - 2⁴ = 126655127 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126655147) 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, 21109188 + ... + 21109193.

It is an arithmetic number, because the mean of its divisors is an integer number (42218382).

Almost surely, 2^126655143 is an apocalyptic number.

126655143 is a deficient number, since it is larger than the sum of its proper divisors (42218385).

126655143 is an equidigital number, since it uses as much as digits as its factorization.

126655143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42218384.

The product of its digits is 21600, while the sum is 33.

The square root of 126655143 is about 11254.1167134520. The cubic root of 126655143 is about 502.1971879209.

The spelling of 126655143 in words is "one hundred twenty-six million, six hundred fifty-five thousand, one hundred forty-three".