1142441531 has 32 divisors (see below), whose sum is σ = 1511447040. Its totient is φ = 836006400.

The previous prime is 1142441527. The next prime is 1142441537. The reversal of 1142441531 is 1351442411.

It is a cyclic number.

It is not a de Polignac number, because 1142441531 - 2² = 1142441527 is a prime.

It is a super-2 number, since 2×1142441531² = 2610345303507247922, which contains 22 as substring.

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 1142441531.

It is not an unprimeable number, because it can be changed into a prime (1142441537) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 966761 + ... + 967941.

It is an arithmetic number, because the mean of its divisors is an integer number (47232720).

Almost surely, 2^1142441531 is an apocalyptic number.

1142441531 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1142441531 is a deficient number, since it is larger than the sum of its proper divisors (369005509).

1142441531 is a wasteful number, since it uses less digits than its factorization.

1142441531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1955.

The product of its digits is 1920, while the sum is 26.

The square root of 1142441531 is about 33800.0226479214. The cubic root of 1142441531 is about 1045.3891642130.

Adding to 1142441531 its reverse (1351442411), we get a palindrome (2493883942).

The spelling of 1142441531 in words is "one billion, one hundred forty-two million, four hundred forty-one thousand, five hundred thirty-one".