1022506461 has 12 divisors (see below), whose sum is σ = 1501166940. Its totient is φ = 670495680.

The previous prime is 1022506439. The next prime is 1022506477. The reversal of 1022506461 is 1646052201.

1022506461 is a `hidden beast` number, since 10 + 2 + 2 + 5 + 0 + 646 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 149303961 + 873202500 = 12219^2 + 29550^2 .

It is a de Polignac number, because none of the positive numbers 2^k-1022506461 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022506061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 930696 + ... + 931793.

It is an arithmetic number, because the mean of its divisors is an integer number (125097245).

Almost surely, 2^1022506461 is an apocalyptic number.

It is an amenable number.

1022506461 is a deficient number, since it is larger than the sum of its proper divisors (478660479).

1022506461 is a wasteful number, since it uses less digits than its factorization.

1022506461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1862556 (or 1862553 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 1022506461 is about 31976.6549376260. The cubic root of 1022506461 is about 1007.4465647002.

Adding to 1022506461 its reverse (1646052201), we get a palindrome (2668558662).

The spelling of 1022506461 in words is "one billion, twenty-two million, five hundred six thousand, four hundred sixty-one".