1153891850 has 24 divisors (see below), whose sum is σ = 2259200640. Its totient is φ = 437263920.

The previous prime is 1153891829. The next prime is 1153891861. The reversal of 1153891850 is 581983511.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 1153891798 and 1153891807.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 606362 + ... + 608261.

It is an arithmetic number, because the mean of its divisors is an integer number (94133360).

Almost surely, 2^1153891850 is an apocalyptic number.

1153891850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1153891850 is a deficient number, since it is larger than the sum of its proper divisors (1105308790).

1153891850 is a wasteful number, since it uses less digits than its factorization.

1153891850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1214654 (or 1214649 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 41.

The square root of 1153891850 is about 33968.9836468505. The cubic root of 1153891850 is about 1048.8700921735.

The spelling of 1153891850 in words is "one billion, one hundred fifty-three million, eight hundred ninety-one thousand, eight hundred fifty".