126073453 has 4 divisors (see below), whose sum is σ = 137534688. Its totient is φ = 114612220.

The previous prime is 126073447. The next prime is 126073457. The reversal of 126073453 is 354370621.

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: 354370621 = 11 ⋅32215511.

It is a cyclic number.

It is not a de Polignac number, because 126073453 - 2⁵ = 126073421 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 (126073457) 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, 5730601 + ... + 5730622.

It is an arithmetic number, because the mean of its divisors is an integer number (34383672).

Almost surely, 2^126073453 is an apocalyptic number.

It is an amenable number.

126073453 is a deficient number, since it is larger than the sum of its proper divisors (11461235).

126073453 is a wasteful number, since it uses less digits than its factorization.

126073453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11461234.

The product of its (nonzero) digits is 15120, while the sum is 31.

The square root of 126073453 is about 11228.2435402871. The cubic root of 126073453 is about 501.4271930307.

The spelling of 126073453 in words is "one hundred twenty-six million, seventy-three thousand, four hundred fifty-three".