133255445 has 8 divisors (see below), whose sum is σ = 166859136. Its totient is φ = 101969296.

The previous prime is 133255411. The next prime is 133255459. The reversal of 133255445 is 544552331.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133255445 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 579257 + ... + 579486.

It is an arithmetic number, because the mean of its divisors is an integer number (20857392).

Almost surely, 2^133255445 is an apocalyptic number.

It is an amenable number.

133255445 is a deficient number, since it is larger than the sum of its proper divisors (33603691).

133255445 is a wasteful number, since it uses less digits than its factorization.

133255445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1158771.

The product of its digits is 36000, while the sum is 32.

The square root of 133255445 is about 11543.6322273364. The cubic root of 133255445 is about 510.7734579449.

The spelling of 133255445 in words is "one hundred thirty-three million, two hundred fifty-five thousand, four hundred forty-five".