1022782145 has 36 divisors (see below), whose sum is σ = 1569357972. Its totient is φ = 637560000.

The previous prime is 1022782139. The next prime is 1022782151. The reversal of 1022782145 is 5412872201.

It is an interprime number because it is at equal distance from previous prime (1022782139) and next prime (1022782151).

It can be written as a sum of positive squares in 2 ways, for example, as 474847681 + 547934464 = 21791^2 + 23408^2 .

It is not a de Polignac number, because 1022782145 - 2¹² = 1022778049 is a prime.

It is a super-2 number, since 2×1022782145² = 2092166632261602050, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 12395 + ... + 46895.

It is an arithmetic number, because the mean of its divisors is an integer number (43593277).

Almost surely, 2^1022782145 is an apocalyptic number.

It is an amenable number.

1022782145 is a deficient number, since it is larger than the sum of its proper divisors (546575827).

1022782145 is a wasteful number, since it uses less digits than its factorization.

1022782145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34542 (or 34524 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 32.

The square root of 1022782145 is about 31980.9653544104. The cubic root of 1022782145 is about 1007.5370977685.

The spelling of 1022782145 in words is "one billion, twenty-two million, seven hundred eighty-two thousand, one hundred forty-five".