126332553 has 4 divisors (see below), whose sum is σ = 168443408. Its totient is φ = 84221700.

The previous prime is 126332519. The next prime is 126332561. The reversal of 126332553 is 355233621.

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.

It is not a de Polignac number, because 126332553 - 2¹⁰ = 126331529 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 126332553.

It is not an unprimeable number, because it can be changed into a prime (126332053) 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, 21055423 + ... + 21055428.

It is an arithmetic number, because the mean of its divisors is an integer number (42110852).

Almost surely, 2^126332553 is an apocalyptic number.

It is an amenable number.

126332553 is a deficient number, since it is larger than the sum of its proper divisors (42110855).

126332553 is an equidigital number, since it uses as much as digits as its factorization.

126332553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42110854.

The product of its digits is 16200, while the sum is 30.

The square root of 126332553 is about 11239.7754870816. The cubic root of 126332553 is about 501.7704608705.

The spelling of 126332553 in words is "one hundred twenty-six million, three hundred thirty-two thousand, five hundred fifty-three".