1142224609 has 4 divisors (see below), whose sum is σ = 1168788016. Its totient is φ = 1115661204.

The previous prime is 1142224583. The next prime is 1142224639. The reversal of 1142224609 is 9064222411.

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 1142224609 - 2¹¹ = 1142222561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1142224639) 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, 13281639 + ... + 13281724.

It is an arithmetic number, because the mean of its divisors is an integer number (292197004).

Almost surely, 2^1142224609 is an apocalyptic number.

It is an amenable number.

1142224609 is a deficient number, since it is larger than the sum of its proper divisors (26563407).

1142224609 is an equidigital number, since it uses as much as digits as its factorization.

1142224609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26563406.

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 1142224609 is about 33796.8135924084. The cubic root of 1142224609 is about 1045.3229953235.

The spelling of 1142224609 in words is "one billion, one hundred forty-two million, two hundred twenty-four thousand, six hundred nine".