126257201 has 8 divisors (see below), whose sum is σ = 144365760. Its totient is φ = 108166608.

The previous prime is 126257123. The next prime is 126257231. The reversal of 126257201 is 102752621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-126257201 is a prime.

It is not an unprimeable number, because it can be changed into a prime (126257231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18290 + ... + 24228.

It is an arithmetic number, because the mean of its divisors is an integer number (18045720).

Almost surely, 2^126257201 is an apocalyptic number.

It is an amenable number.

126257201 is a deficient number, since it is larger than the sum of its proper divisors (18108559).

126257201 is an equidigital number, since it uses as much as digits as its factorization.

126257201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8983.

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 126257201 is about 11236.4229628472. The cubic root of 126257201 is about 501.6706794429.

The spelling of 126257201 in words is "one hundred twenty-six million, two hundred fifty-seven thousand, two hundred one".