1074143887 has 2 divisors, whose sum is σ = 1074143888. Its totient is φ = 1074143886.

The previous prime is 1074143881. The next prime is 1074143897. The reversal of 1074143887 is 7883414701.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1074143887 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1074143881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 537071943 + 537071944.

It is an arithmetic number, because the mean of its divisors is an integer number (537071944).

Almost surely, 2^1074143887 is an apocalyptic number.

1074143887 is a deficient number, since it is larger than the sum of its proper divisors (1).

1074143887 is an equidigital number, since it uses as much as digits as its factorization.

1074143887 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 150528, while the sum is 43.

The square root of 1074143887 is about 32774.1344203016. The cubic root of 1074143887 is about 1024.1277964357.

The spelling of 1074143887 in words is "one billion, seventy-four million, one hundred forty-three thousand, eight hundred eighty-seven".