1061169287 has 4 divisors (see below), whose sum is σ = 1089849576. Its totient is φ = 1032489000.

The previous prime is 1061169281. The next prime is 1061169353. The reversal of 1061169287 is 7829611601.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1061169287 - 2²⁸ = 792733831 is a prime.

It is a super-2 number, since 2×1061169287² = 2252160511344176738, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1061169281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14340089 + ... + 14340162.

It is an arithmetic number, because the mean of its divisors is an integer number (272462394).

Almost surely, 2^1061169287 is an apocalyptic number.

1061169287 is a deficient number, since it is larger than the sum of its proper divisors (28680289).

1061169287 is an equidigital number, since it uses as much as digits as its factorization.

1061169287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28680288.

The product of its (nonzero) digits is 36288, while the sum is 41.

The square root of 1061169287 is about 32575.5934251396. The cubic root of 1061169287 is about 1019.9875966068.

The spelling of 1061169287 in words is "one billion, sixty-one million, one hundred sixty-nine thousand, two hundred eighty-seven".