126771245 has 16 divisors (see below), whose sum is σ = 157552128. Its totient is φ = 97821120.

The previous prime is 126771233. The next prime is 126771247. The reversal of 126771245 is 542177621.

It is not a de Polignac number, because 126771245 - 2¹⁰ = 126770221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126771247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52607 + ... + 54963.

It is an arithmetic number, because the mean of its divisors is an integer number (9847008).

Almost surely, 2^126771245 is an apocalyptic number.

It is an amenable number.

126771245 is a deficient number, since it is larger than the sum of its proper divisors (30780883).

126771245 is a wasteful number, since it uses less digits than its factorization.

126771245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2740.

The product of its digits is 23520, while the sum is 35.

The square root of 126771245 is about 11259.2737332387. The cubic root of 126771245 is about 502.3505921165.

The spelling of 126771245 in words is "one hundred twenty-six million, seven hundred seventy-one thousand, two hundred forty-five".