1540000873 has 2 divisors, whose sum is σ = 1540000874. Its totient is φ = 1540000872.

The previous prime is 1540000867. The next prime is 1540000907. The reversal of 1540000873 is 3780000451.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1536012864 + 3988009 = 39192^2 + 1997^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1540000873 is a prime.

It is not a weakly prime, because it can be changed into another prime (1540000373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 770000436 + 770000437.

It is an arithmetic number, because the mean of its divisors is an integer number (770000437).

Almost surely, 2^1540000873 is an apocalyptic number.

It is an amenable number.

1540000873 is a deficient number, since it is larger than the sum of its proper divisors (1).

1540000873 is an equidigital number, since it uses as much as digits as its factorization.

1540000873 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 1540000873 is about 39242.8448637455. The cubic root of 1540000873 is about 1154.8005685038.

The spelling of 1540000873 in words is "one billion, five hundred forty million, eight hundred seventy-three", and thus it is an aban number.