1142535312 has 30 divisors (see below), whose sum is σ = 3197512422. Its totient is φ = 380845056.

The previous prime is 1142535293. The next prime is 1142535313. The reversal of 1142535312 is 2135352411.

1142535312 is a `hidden beast` number, since 114 + 2 + 535 + 3 + 12 = 666.

It can be written as a sum of positive squares in only one way, i.e., 902161296 + 240374016 = 30036^2 + 15504^2 .

It is not an unprimeable number, because it can be changed into a prime (1142535313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3966993 + ... + 3967280.

Almost surely, 2^1142535312 is an apocalyptic number.

1142535312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1142535312 is an abundant number, since it is smaller than the sum of its proper divisors (2054977110).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1142535312 is a wasteful number, since it uses less digits than its factorization.

1142535312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7934287 (or 7934278 counting only the distinct ones).

The product of its digits is 3600, while the sum is 27.

The square root of 1142535312 is about 33801.4099114223. The cubic root of 1142535312 is about 1045.4177681448.

Adding to 1142535312 its reverse (2135352411), we get a palindrome (3277887723).

The spelling of 1142535312 in words is "one billion, one hundred forty-two million, five hundred thirty-five thousand, three hundred twelve".