1047126553 has 4 divisors (see below), whose sum is σ = 1142319888. Its totient is φ = 951933220.

The previous prime is 1047126539. The next prime is 1047126559. The reversal of 1047126553 is 3556217401.

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 a cyclic number.

It is not a de Polignac number, because 1047126553 - 2¹³ = 1047118361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1047126559) 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, 47596651 + ... + 47596672.

It is an arithmetic number, because the mean of its divisors is an integer number (285579972).

Almost surely, 2^1047126553 is an apocalyptic number.

It is an amenable number.

1047126553 is a deficient number, since it is larger than the sum of its proper divisors (95193335).

1047126553 is an equidigital number, since it uses as much as digits as its factorization.

1047126553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95193334.

The product of its (nonzero) digits is 25200, while the sum is 34.

The square root of 1047126553 is about 32359.3348664647. The cubic root of 1047126553 is about 1015.4683475223.

The spelling of 1047126553 in words is "one billion, forty-seven million, one hundred twenty-six thousand, five hundred fifty-three".