1141244639 has 16 divisors (see below), whose sum is σ = 1180443264. Its totient is φ = 1102701600.

The previous prime is 1141244623. The next prime is 1141244653. The reversal of 1141244639 is 9364421411.

It is a cyclic number.

It is not a de Polignac number, because 1141244639 - 2⁴ = 1141244623 is a prime.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1141244599 and 1141244608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1141244609) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2575952 + ... + 2576394.

It is an arithmetic number, because the mean of its divisors is an integer number (73777704).

Almost surely, 2^1141244639 is an apocalyptic number.

1141244639 is a deficient number, since it is larger than the sum of its proper divisors (39198625).

1141244639 is a wasteful number, since it uses less digits than its factorization.

1141244639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 998.

The product of its digits is 20736, while the sum is 35.

The square root of 1141244639 is about 33782.3125170554. The cubic root of 1141244639 is about 1045.0239653242.

The spelling of 1141244639 in words is "one billion, one hundred forty-one million, two hundred forty-four thousand, six hundred thirty-nine".