1140847517 has 4 divisors (see below), whose sum is σ = 1141777020. Its totient is φ = 1139918016.

The previous prime is 1140847507. The next prime is 1140847531. The reversal of 1140847517 is 7157480411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7157480411 = 33503 ⋅213637.

It can be written as a sum of positive squares in 2 ways, for example, as 559748281 + 581099236 = 23659^2 + 24106^2 .

It is a cyclic number.

It is not a de Polignac number, because 1140847517 - 2¹⁸ = 1140585373 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1140847507) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 462908 + ... + 465365.

It is an arithmetic number, because the mean of its divisors is an integer number (285444255).

Almost surely, 2^1140847517 is an apocalyptic number.

It is an amenable number.

1140847517 is a deficient number, since it is larger than the sum of its proper divisors (929503).

1140847517 is an equidigital number, since it uses as much as digits as its factorization.

1140847517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 929502.

The product of its (nonzero) digits is 31360, while the sum is 38.

The square root of 1140847517 is about 33776.4343440808. The cubic root of 1140847517 is about 1044.9027379850.

The spelling of 1140847517 in words is "one billion, one hundred forty million, eight hundred forty-seven thousand, five hundred seventeen".