133763808 has 24 divisors (see below), whose sum is σ = 351130248. Its totient is φ = 44587904.

The previous prime is 133763807. The next prime is 133763809. The reversal of 133763808 is 808367331.

It is an interprime number because it is at equal distance from previous prime (133763807) and next prime (133763809).

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133763801) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 696591 + ... + 696782.

It is an arithmetic number, because the mean of its divisors is an integer number (14630427).

Almost surely, 2^133763808 is an apocalyptic number.

It is an amenable number.

133763808 is an abundant number, since it is smaller than the sum of its proper divisors (217366440).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

133763808 is a wasteful number, since it uses less digits than its factorization.

133763808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1393386 (or 1393378 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 39.

The square root of 133763808 is about 11565.6304627115. The cubic root of 133763808 is about 511.4221589688.

The spelling of 133763808 in words is "one hundred thirty-three million, seven hundred sixty-three thousand, eight hundred eight".