1056642941 has 2 divisors, whose sum is σ = 1056642942. Its totient is φ = 1056642940.

The previous prime is 1056642841. The next prime is 1056642947. The reversal of 1056642941 is 1492466501.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 949934041 + 106708900 = 30821^2 + 10330^2 .

It is an emirp because it is prime and its reverse (1492466501) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1056642941 - 2¹⁸ = 1056380797 is a prime.

It is a super-2 number, since 2×1056642941² = 2232988609530258962, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1056642895 and 1056642904.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1056642947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 528321470 + 528321471.

It is an arithmetic number, because the mean of its divisors is an integer number (528321471).

Almost surely, 2^1056642941 is an apocalyptic number.

It is an amenable number.

1056642941 is a deficient number, since it is larger than the sum of its proper divisors (1).

1056642941 is an equidigital number, since it uses as much as digits as its factorization.

1056642941 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 1056642941 is about 32506.0446840276. The cubic root of 1056642941 is about 1018.5353003288.

The spelling of 1056642941 in words is "one billion, fifty-six million, six hundred forty-two thousand, nine hundred forty-one".