126061757 has 4 divisors (see below), whose sum is σ = 129136476. Its totient is φ = 122987040.

The previous prime is 126061723. The next prime is 126061759. The reversal of 126061757 is 757160621.

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

It can be written as a sum of positive squares in 2 ways, for example, as 51998521 + 74063236 = 7211^2 + 8606^2 .

It is a cyclic number.

It is not a de Polignac number, because 126061757 - 2¹⁰ = 126060733 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 (126061759) 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, 1537298 + ... + 1537379.

It is an arithmetic number, because the mean of its divisors is an integer number (32284119).

Almost surely, 2^126061757 is an apocalyptic number.

It is an amenable number.

126061757 is a deficient number, since it is larger than the sum of its proper divisors (3074719).

126061757 is an equidigital number, since it uses as much as digits as its factorization.

126061757 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3074718.

The product of its (nonzero) digits is 17640, while the sum is 35.

The square root of 126061757 is about 11227.7226987488. The cubic root of 126061757 is about 501.4116865312.

The spelling of 126061757 in words is "one hundred twenty-six million, sixty-one thousand, seven hundred fifty-seven".