1140313251 has 48 divisors (see below), whose sum is σ = 2013389568. Its totient is φ = 566596800.

The previous prime is 1140313243. The next prime is 1140313271. The reversal of 1140313251 is 1523130411.

It is not a de Polignac number, because 1140313251 - 2³ = 1140313243 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (1140313271) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 21861 + ... + 52521.

It is an arithmetic number, because the mean of its divisors is an integer number (41945616).

Almost surely, 2^1140313251 is an apocalyptic number.

1140313251 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1140313251 is a deficient number, since it is larger than the sum of its proper divisors (873076317).

1140313251 is a wasteful number, since it uses less digits than its factorization.

1140313251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30712 (or 30705 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 1140313251 is about 33768.5245606023. The cubic root of 1140313251 is about 1044.7396010289.

Adding to 1140313251 its reverse (1523130411), we get a palindrome (2663443662).

The spelling of 1140313251 in words is "one billion, one hundred forty million, three hundred thirteen thousand, two hundred fifty-one".