1074689281 has 2 divisors, whose sum is σ = 1074689282. Its totient is φ = 1074689280.

The previous prime is 1074689257. The next prime is 1074689333. The reversal of 1074689281 is 1829864701.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1013849281 + 60840000 = 31841^2 + 7800^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1074689281 is a prime.

It is a super-2 number, since 2×1074689281² = 2309914101392593922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1074689081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 537344640 + 537344641.

It is an arithmetic number, because the mean of its divisors is an integer number (537344641).

Almost surely, 2^1074689281 is an apocalyptic number.

It is an amenable number.

1074689281 is a deficient number, since it is larger than the sum of its proper divisors (1).

1074689281 is an equidigital number, since it uses as much as digits as its factorization.

1074689281 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 193536, while the sum is 46.

The square root of 1074689281 is about 32782.4538587336. The cubic root of 1074689281 is about 1024.3010999240.

The spelling of 1074689281 in words is "one billion, seventy-four million, six hundred eighty-nine thousand, two hundred eighty-one".