126447253 has 4 divisors (see below), whose sum is σ = 127699308. Its totient is φ = 125195200.

The previous prime is 126447247. The next prime is 126447259. The reversal of 126447253 is 352744621.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (126447247) and next prime (126447259).

It can be written as a sum of positive squares in 2 ways, for example, as 117548964 + 8898289 = 10842^2 + 2983^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-126447253 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 (126447259) 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, 625876 + ... + 626077.

It is an arithmetic number, because the mean of its divisors is an integer number (31924827).

Almost surely, 2^126447253 is an apocalyptic number.

It is an amenable number.

126447253 is a deficient number, since it is larger than the sum of its proper divisors (1252055).

126447253 is a wasteful number, since it uses less digits than its factorization.

126447253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1252054.

The product of its digits is 40320, while the sum is 34.

The square root of 126447253 is about 11244.8767445446. The cubic root of 126447253 is about 501.9222709448.

The spelling of 126447253 in words is "one hundred twenty-six million, four hundred forty-seven thousand, two hundred fifty-three".