1140253512 has 32 divisors (see below), whose sum is σ = 3018319200. Its totient is φ = 357726464.

The previous prime is 1140253487. The next prime is 1140253547. The reversal of 1140253512 is 2153520411.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1396962 + ... + 1397777.

It is an arithmetic number, because the mean of its divisors is an integer number (94322475).

Almost surely, 2^1140253512 is an apocalyptic number.

1140253512 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1140253512 is an abundant number, since it is smaller than the sum of its proper divisors (1878065688).

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

1140253512 is a wasteful number, since it uses less digits than its factorization.

1140253512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2794765 (or 2794761 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 1140253512 is about 33767.6400122958. The cubic root of 1140253512 is about 1044.7213566886.

Adding to 1140253512 its reverse (2153520411), we get a palindrome (3293773923).

The spelling of 1140253512 in words is "one billion, one hundred forty million, two hundred fifty-three thousand, five hundred twelve".