133853799 has 16 divisors (see below), whose sum is σ = 180702464. Its totient is φ = 88128000.

The previous prime is 133853777. The next prime is 133853843. The reversal of 133853799 is 997358331.

It is not a de Polignac number, because 133853799 - 2⁹ = 133853287 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133853719) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86664 + ... + 88194.

It is an arithmetic number, because the mean of its divisors is an integer number (11293904).

Almost surely, 2^133853799 is an apocalyptic number.

133853799 is a deficient number, since it is larger than the sum of its proper divisors (46848665).

133853799 is a wasteful number, since it uses less digits than its factorization.

133853799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1878.

The product of its digits is 612360, while the sum is 48.

The square root of 133853799 is about 11569.5202579882. The cubic root of 133853799 is about 511.5368214602.

The spelling of 133853799 in words is "one hundred thirty-three million, eight hundred fifty-three thousand, seven hundred ninety-nine".