1061156287 has 2 divisors, whose sum is σ = 1061156288. Its totient is φ = 1061156286.

The previous prime is 1061156237. The next prime is 1061156297. The reversal of 1061156287 is 7826511601.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1061156287 - 2²³ = 1052767679 is a prime.

It is a super-2 number, since 2×1061156287² = 2252105330879252738, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1061156207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 530578143 + 530578144.

It is an arithmetic number, because the mean of its divisors is an integer number (530578144).

Almost surely, 2^1061156287 is an apocalyptic number.

1061156287 is a deficient number, since it is larger than the sum of its proper divisors (1).

1061156287 is an equidigital number, since it uses as much as digits as its factorization.

1061156287 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20160, while the sum is 37.

The square root of 1061156287 is about 32575.3938886393. The cubic root of 1061156287 is about 1019.9834314238.

Adding to 1061156287 its reverse (7826511601), we get a palindrome (8887667888).

The spelling of 1061156287 in words is "one billion, sixty-one million, one hundred fifty-six thousand, two hundred eighty-seven".