1140072449 has 2 divisors, whose sum is σ = 1140072450. Its totient is φ = 1140072448.

The previous prime is 1140072421. The next prime is 1140072473. The reversal of 1140072449 is 9442700411.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 791578225 + 348494224 = 28135^2 + 18668^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1140072449 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1140072419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 570036224 + 570036225.

It is an arithmetic number, because the mean of its divisors is an integer number (570036225).

Almost surely, 2^1140072449 is an apocalyptic number.

It is an amenable number.

1140072449 is a deficient number, since it is larger than the sum of its proper divisors (1).

1140072449 is an equidigital number, since it uses as much as digits as its factorization.

1140072449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 1140072449 is about 33764.9588923191. The cubic root of 1140072449 is about 1044.6660560050. Note that the first 3 decimals are identical.

The spelling of 1140072449 in words is "one billion, one hundred forty million, seventy-two thousand, four hundred forty-nine".