1102855613 has 2 divisors, whose sum is σ = 1102855614. Its totient is φ = 1102855612.

The previous prime is 1102855609. The next prime is 1102855631. The reversal of 1102855613 is 3165582011.

1102855613 = 23482² + 23483².

Together with next prime (1102855631) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 551451289 + 551404324 = 23483^2 + 23482^2 .

It is a cyclic number.

It is not a de Polignac number, because 1102855613 - 2² = 1102855609 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1102855613.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1102855673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 551427806 + 551427807.

It is an arithmetic number, because the mean of its divisors is an integer number (551427807).

Almost surely, 2^1102855613 is an apocalyptic number.

1102855613 is the 23483-rd centered square number.

It is an amenable number.

1102855613 is a deficient number, since it is larger than the sum of its proper divisors (1).

1102855613 is an equidigital number, since it uses as much as digits as its factorization.

1102855613 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7200, while the sum is 32.

The square root of 1102855613 is about 33209.2699859542. The cubic root of 1102855613 is about 1033.1726140488.

The spelling of 1102855613 in words is "one billion, one hundred two million, eight hundred fifty-five thousand, six hundred thirteen".