126253753 has 4 divisors (see below), whose sum is σ = 126757008. Its totient is φ = 125750500.

The previous prime is 126253741. The next prime is 126253817. The reversal of 126253753 is 357352621.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 357352621 = 1039 ⋅343939.

It is a cyclic number.

It is not a de Polignac number, because 126253753 - 2⁹ = 126253241 is a prime.

It is not an unprimeable number, because it can be changed into a prime (126253453) 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, 251251 + ... + 251752.

It is an arithmetic number, because the mean of its divisors is an integer number (31689252).

Almost surely, 2^126253753 is an apocalyptic number.

It is an amenable number.

126253753 is a deficient number, since it is larger than the sum of its proper divisors (503255).

126253753 is an equidigital number, since it uses as much as digits as its factorization.

126253753 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 503254.

The product of its digits is 37800, while the sum is 34.

The square root of 126253753 is about 11236.2695321891. The cubic root of 126253753 is about 501.6661126373. Note that the first 3 decimals are identical.

The spelling of 126253753 in words is "one hundred twenty-six million, two hundred fifty-three thousand, seven hundred fifty-three".