126091745 has 36 divisors (see below), whose sum is σ = 169937460. Its totient is φ = 89766144.

The previous prime is 126091723. The next prime is 126091753. The reversal of 126091745 is 547190621.

It can be written as a sum of positive squares in 18 ways, for example, as 51165409 + 74926336 = 7153^2 + 8656^2 .

It is not a de Polignac number, because 126091745 - 2⁸ = 126091489 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1156751 + ... + 1156859.

It is an arithmetic number, because the mean of its divisors is an integer number (4720485).

Almost surely, 2^126091745 is an apocalyptic number.

It is an amenable number.

126091745 is a deficient number, since it is larger than the sum of its proper divisors (43845715).

126091745 is a wasteful number, since it uses less digits than its factorization.

126091745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214 (or 164 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 35.

The square root of 126091745 is about 11229.0580637915. The cubic root of 126091745 is about 501.4514425521.

The spelling of 126091745 in words is "one hundred twenty-six million, ninety-one thousand, seven hundred forty-five".