1241142553 has 4 divisors (see below), whose sum is σ = 1418448640. Its totient is φ = 1063836468.

The previous prime is 1241142547. The next prime is 1241142563. The reversal of 1241142553 is 3552411421.

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 1241142553 - 2¹³ = 1241134361 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1241142533) 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, 88653033 + ... + 88653046.

It is an arithmetic number, because the mean of its divisors is an integer number (354612160).

Almost surely, 2^1241142553 is an apocalyptic number.

It is an amenable number.

1241142553 is a deficient number, since it is larger than the sum of its proper divisors (177306087).

1241142553 is an equidigital number, since it uses as much as digits as its factorization.

1241142553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177306086.

The product of its digits is 4800, while the sum is 28.

The square root of 1241142553 is about 35229.8531504178. The cubic root of 1241142553 is about 1074.6669393300. Note that the first 3 decimals are identical.

Adding to 1241142553 its reverse (3552411421), we get a palindrome (4793553974).

The spelling of 1241142553 in words is "one billion, two hundred forty-one million, one hundred forty-two thousand, five hundred fifty-three".