1023901855 has 16 divisors (see below), whose sum is σ = 1242727200. Its totient is φ = 809792640.

The previous prime is 1023901847. The next prime is 1023901877. The reversal of 1023901855 is 5581093201.

1023901855 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1023901855 - 2³ = 1023901847 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1023901855.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 275560 + ... + 279250.

It is an arithmetic number, because the mean of its divisors is an integer number (77670450).

Almost surely, 2^1023901855 is an apocalyptic number.

1023901855 is a deficient number, since it is larger than the sum of its proper divisors (218825345).

1023901855 is a wasteful number, since it uses less digits than its factorization.

1023901855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4314.

The product of its (nonzero) digits is 10800, while the sum is 34.

The square root of 1023901855 is about 31998.4664476284. The cubic root of 1023901855 is about 1007.9046370768.

The spelling of 1023901855 in words is "one billion, twenty-three million, nine hundred one thousand, eight hundred fifty-five".