1074407981 has 2 divisors, whose sum is σ = 1074407982. Its totient is φ = 1074407980.

The previous prime is 1074407881. The next prime is 1074407989. The reversal of 1074407981 is 1897044701.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1057875625 + 16532356 = 32525^2 + 4066^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1074407981 is a prime.

It is a super-2 number, since 2×1074407981² = 2308705019272992722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1074407989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 537203990 + 537203991.

It is an arithmetic number, because the mean of its divisors is an integer number (537203991).

Almost surely, 2^1074407981 is an apocalyptic number.

It is an amenable number.

1074407981 is a deficient number, since it is larger than the sum of its proper divisors (1).

1074407981 is an equidigital number, since it uses as much as digits as its factorization.

1074407981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 56448, while the sum is 41.

The square root of 1074407981 is about 32778.1631730639. The cubic root of 1074407981 is about 1024.2117218287.

The spelling of 1074407981 in words is "one billion, seventy-four million, four hundred seven thousand, nine hundred eighty-one".