1070620981 has 2 divisors, whose sum is σ = 1070620982. Its totient is φ = 1070620980.

The previous prime is 1070620933. The next prime is 1070621047. The reversal of 1070620981 is 1890260701.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1023424081 + 47196900 = 31991^2 + 6870^2 .

It is a cyclic number.

It is not a de Polignac number, because 1070620981 - 2¹¹ = 1070618933 is a prime.

It is a super-2 number, since 2×1070620981² = 2292458569914804722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1070620931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 535310490 + 535310491.

It is an arithmetic number, because the mean of its divisors is an integer number (535310491).

Almost surely, 2^1070620981 is an apocalyptic number.

It is an amenable number.

1070620981 is a deficient number, since it is larger than the sum of its proper divisors (1).

1070620981 is an equidigital number, since it uses as much as digits as its factorization.

1070620981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6048, while the sum is 34.

The square root of 1070620981 is about 32720.3450623614. The cubic root of 1070620981 is about 1023.0069480004.

The spelling of 1070620981 in words is "one billion, seventy million, six hundred twenty thousand, nine hundred eighty-one".