1012064981 has 2 divisors, whose sum is σ = 1012064982. Its totient is φ = 1012064980.

The previous prime is 1012064941. The next prime is 1012064987. The reversal of 1012064981 is 1894602101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 944578756 + 67486225 = 30734^2 + 8215^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1012064981 is a prime.

It is a super-2 number, since 2×1012064981² = 2048551051533060722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1012064987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 506032490 + 506032491.

It is an arithmetic number, because the mean of its divisors is an integer number (506032491).

Almost surely, 2^1012064981 is an apocalyptic number.

It is an amenable number.

1012064981 is a deficient number, since it is larger than the sum of its proper divisors (1).

1012064981 is an equidigital number, since it uses as much as digits as its factorization.

1012064981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 32.

The square root of 1012064981 is about 31812.9687548962. The cubic root of 1012064981 is about 1004.0055941261.

The spelling of 1012064981 in words is "one billion, twelve million, sixty-four thousand, nine hundred eighty-one".