1140320745 has 48 divisors (see below), whose sum is σ = 2055456000. Its totient is φ = 584115840.

The previous prime is 1140320729. The next prime is 1140320773. The reversal of 1140320745 is 5470230411.

1140320745 is a `hidden beast` number, since 11 + 403 + 207 + 45 = 666.

It is not a de Polignac number, because 1140320745 - 2⁴ = 1140320729 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 257500 + ... + 261890.

It is an arithmetic number, because the mean of its divisors is an integer number (42822000).

Almost surely, 2^1140320745 is an apocalyptic number.

1140320745 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1140320745 is a deficient number, since it is larger than the sum of its proper divisors (915135255).

1140320745 is a wasteful number, since it uses less digits than its factorization.

1140320745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4630 (or 4627 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 1140320745 is about 33768.6355217382. The cubic root of 1140320745 is about 1044.7418896578.

The spelling of 1140320745 in words is "one billion, one hundred forty million, three hundred twenty thousand, seven hundred forty-five".