126250621 has 8 divisors (see below), whose sum is σ = 144524480. Its totient is φ = 108036288.

The previous prime is 126250613. The next prime is 126250633. The reversal of 126250621 is 126052621.

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

It is a cyclic number.

It is not a de Polignac number, because 126250621 - 2³ = 126250613 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 (126251621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10236 + ... + 18901.

It is an arithmetic number, because the mean of its divisors is an integer number (18065560).

Almost surely, 2^126250621 is an apocalyptic number.

It is an amenable number.

126250621 is a deficient number, since it is larger than the sum of its proper divisors (18273859).

126250621 is an equidigital number, since it uses as much as digits as its factorization.

126250621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29763.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 126250621 is about 11236.1301612254. The cubic root of 126250621 is about 501.6619642953.

The spelling of 126250621 in words is "one hundred twenty-six million, two hundred fifty thousand, six hundred twenty-one".