1102856645 has 16 divisors (see below), whose sum is σ = 1474460928. Its totient is φ = 785010240.

The previous prime is 1102856627. The next prime is 1102856753. The reversal of 1102856645 is 5466582011.

It is a happy number.

It is not a de Polignac number, because 1102856645 - 2¹⁸ = 1102594501 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1102856599 and 1102856608.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 210734 + ... + 215903.

It is an arithmetic number, because the mean of its divisors is an integer number (92153808).

Almost surely, 2^1102856645 is an apocalyptic number.

It is an amenable number.

1102856645 is a deficient number, since it is larger than the sum of its proper divisors (371604283).

1102856645 is a wasteful number, since it uses less digits than its factorization.

1102856645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 426700.

The product of its (nonzero) digits is 57600, while the sum is 38.

The square root of 1102856645 is about 33209.2855237808. The cubic root of 1102856645 is about 1033.1729363134.

The spelling of 1102856645 in words is "one billion, one hundred two million, eight hundred fifty-six thousand, six hundred forty-five".