1060549991 has 2 divisors, whose sum is σ = 1060549992. Its totient is φ = 1060549990.

The previous prime is 1060549967. The next prime is 1060550011. The reversal of 1060549991 is 1999450601.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1060549991 - 2⁶ = 1060549927 is a prime.

It is a super-2 number, since 2×1060549991² = 2249532566820200162, which contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1060549951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 530274995 + 530274996.

It is an arithmetic number, because the mean of its divisors is an integer number (530274996).

Almost surely, 2^1060549991 is an apocalyptic number.

1060549991 is a deficient number, since it is larger than the sum of its proper divisors (1).

1060549991 is an equidigital number, since it uses as much as digits as its factorization.

1060549991 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 87480, while the sum is 44.

The square root of 1060549991 is about 32566.0865164975. The cubic root of 1060549991 is about 1019.7891371755.

The spelling of 1060549991 in words is "one billion, sixty million, five hundred forty-nine thousand, nine hundred ninety-one".