126370253 has 4 divisors (see below), whose sum is σ = 126624000. Its totient is φ = 126116508.

The previous prime is 126370247. The next prime is 126370267. The reversal of 126370253 is 352073621.

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: 352073621 = 17 ⋅20710213.

It is a cyclic number.

It is not a de Polignac number, because 126370253 - 2¹⁸ = 126108109 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 (126370553) 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, 126125 + ... + 127122.

It is an arithmetic number, because the mean of its divisors is an integer number (31656000).

Almost surely, 2^126370253 is an apocalyptic number.

It is an amenable number.

126370253 is a deficient number, since it is larger than the sum of its proper divisors (253747).

126370253 is an equidigital number, since it uses as much as digits as its factorization.

126370253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253746.

The product of its (nonzero) digits is 7560, while the sum is 29.

The square root of 126370253 is about 11241.4524417443. The cubic root of 126370253 is about 501.8203684743.

The spelling of 126370253 in words is "one hundred twenty-six million, three hundred seventy thousand, two hundred fifty-three".