133451303 has 6 divisors (see below), whose sum is σ = 135168264. Its totient is φ = 131755884.

The previous prime is 133451299. The next prime is 133451323. The reversal of 133451303 is 303154331.

It is a happy number.

It is not a de Polignac number, because 133451303 - 2² = 133451299 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 (133451323) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4451 + ... + 16932.

It is an arithmetic number, because the mean of its divisors is an integer number (22528044).

Almost surely, 2^133451303 is an apocalyptic number.

133451303 is a deficient number, since it is larger than the sum of its proper divisors (1716961).

133451303 is an frugal number, since it uses more digits than its factorization.

133451303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21541 (or 21462 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 23.

The square root of 133451303 is about 11552.1124907958. The cubic root of 133451303 is about 511.0235792955.

The spelling of 133451303 in words is "one hundred thirty-three million, four hundred fifty-one thousand, three hundred three".