126901257 has 8 divisors (see below), whose sum is σ = 193373376. Its totient is φ = 72514992.

The previous prime is 126901249. The next prime is 126901261. The reversal of 126901257 is 752109621.

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

It is not a de Polignac number, because 126901257 - 2³ = 126901249 is a prime.

It is a super-2 number, since 2×126901257² = 32207858056360098, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (126901207) 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, 3021438 + ... + 3021479.

It is an arithmetic number, because the mean of its divisors is an integer number (24171672).

Almost surely, 2^126901257 is an apocalyptic number.

It is an amenable number.

126901257 is a deficient number, since it is larger than the sum of its proper divisors (66472119).

126901257 is an equidigital number, since it uses as much as digits as its factorization.

126901257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6042927.

The product of its (nonzero) digits is 7560, while the sum is 33.

The square root of 126901257 is about 11265.0458054994. The cubic root of 126901257 is about 502.5222643040.

The spelling of 126901257 in words is "one hundred twenty-six million, nine hundred one thousand, two hundred fifty-seven".