1022543145 has 48 divisors (see below), whose sum is σ = 1912070160. Its totient is φ = 502530048.

The previous prime is 1022543117. The next prime is 1022543191. The reversal of 1022543145 is 5413452201.

1022543145 is a `hidden beast` number, since 1 + 0 + 225 + 431 + 4 + 5 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 9585216 + 1012957929 = 3096^2 + 31827^2 .

It is not a de Polignac number, because 1022543145 - 2¹⁰ = 1022542121 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 448729 + ... + 451001.

It is an arithmetic number, because the mean of its divisors is an integer number (39834795).

Almost surely, 2^1022543145 is an apocalyptic number.

1022543145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1022543145 is a deficient number, since it is larger than the sum of its proper divisors (889527015).

1022543145 is a wasteful number, since it uses less digits than its factorization.

1022543145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3066 (or 3063 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 1022543145 is about 31977.2285384459. The cubic root of 1022543145 is about 1007.4586124571.

Adding to 1022543145 its reverse (5413452201), we get a palindrome (6435995346).

The spelling of 1022543145 in words is "one billion, twenty-two million, five hundred forty-three thousand, one hundred forty-five".