1142531512 has 16 divisors (see below), whose sum is σ = 2268261360. Its totient is φ = 537661824.

The previous prime is 1142531483. The next prime is 1142531527. The reversal of 1142531512 is 2151352411.

It is a super-2 number, since 2×1142531512² = 2610756511826012288, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4200348 + ... + 4200619.

It is an arithmetic number, because the mean of its divisors is an integer number (141766335).

Almost surely, 2^1142531512 is an apocalyptic number.

It is an amenable number.

1142531512 is a deficient number, since it is larger than the sum of its proper divisors (1125729848).

1142531512 is a wasteful number, since it uses less digits than its factorization.

1142531512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8400990 (or 8400986 counting only the distinct ones).

The product of its digits is 1200, while the sum is 25.

The square root of 1142531512 is about 33801.3537007026. The cubic root of 1142531512 is about 1045.4166091457.

Adding to 1142531512 its reverse (2151352411), we get a palindrome (3293883923).

The spelling of 1142531512 in words is "one billion, one hundred forty-two million, five hundred thirty-one thousand, five hundred twelve".