1042981061 has 2 divisors, whose sum is σ = 1042981062. Its totient is φ = 1042981060.

The previous prime is 1042981033. The next prime is 1042981103. The reversal of 1042981061 is 1601892401.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 753777025 + 289204036 = 27455^2 + 17006^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1042981061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1042981361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 521490530 + 521490531.

It is an arithmetic number, because the mean of its divisors is an integer number (521490531).

Almost surely, 2^1042981061 is an apocalyptic number.

It is an amenable number.

1042981061 is a deficient number, since it is larger than the sum of its proper divisors (1).

1042981061 is an equidigital number, since it uses as much as digits as its factorization.

1042981061 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 1042981061 is about 32295.2173084499. The cubic root of 1042981061 is about 1014.1265220192.

The spelling of 1042981061 in words is "one billion, forty-two million, nine hundred eighty-one thousand, sixty-one".