1140761 has 4 divisors (see below), whose sum is σ = 1159524. Its totient is φ = 1122000.

The previous prime is 1140749. The next prime is 1140787. The reversal of 1140761 is 1670411.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 102400 + 1038361 = 320^2 + 1019^2 .

It is a cyclic number.

It is not a de Polignac number, because 1140761 - 2⁶ = 1140697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1140721) 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, 9290 + ... + 9411.

It is an arithmetic number, because the mean of its divisors is an integer number (289881).

2^1140761 is an apocalyptic number.

It is an amenable number.

1140761 is a deficient number, since it is larger than the sum of its proper divisors (18763).

1140761 is an equidigital number, since it uses as much as digits as its factorization.

1140761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18762.

The product of its (nonzero) digits is 168, while the sum is 20.

The square root of 1140761 is about 1068.0641366510. The cubic root of 1140761 is about 104.4876323665.

The spelling of 1140761 in words is "one million, one hundred forty thousand, seven hundred sixty-one".