1868313135 has 32 divisors (see below), whose sum is σ = 3227410368. Its totient is φ = 917452800.

The previous prime is 1868313119. The next prime is 1868313179. The reversal of 1868313135 is 5313138681.

It is a happy number.

It is not a de Polignac number, because 1868313135 - 2⁴ = 1868313119 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a junction number, because it is equal to n+sod(n) for n = 1868313093 and 1868313102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 66249 + ... + 90141.

It is an arithmetic number, because the mean of its divisors is an integer number (100856574).

Almost surely, 2^1868313135 is an apocalyptic number.

1868313135 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1868313135 is a deficient number, since it is larger than the sum of its proper divisors (1359097233).

1868313135 is a wasteful number, since it uses less digits than its factorization.

1868313135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24315.

The product of its digits is 51840, while the sum is 39.

The square root of 1868313135 is about 43223.9879580772. The cubic root of 1868313135 is about 1231.6384042308.

The spelling of 1868313135 in words is "one billion, eight hundred sixty-eight million, three hundred thirteen thousand, one hundred thirty-five".