133255801 has 8 divisors (see below), whose sum is σ = 152362304. Its totient is φ = 114166800.

The previous prime is 133255799. The next prime is 133255819. The reversal of 133255801 is 108552331.

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

It is a cyclic number.

It is not a de Polignac number, because 133255801 - 2¹ = 133255799 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 133255801.

It is not an unprimeable number, because it can be changed into a prime (133255201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26326 + ... + 30976.

It is an arithmetic number, because the mean of its divisors is an integer number (19045288).

Almost surely, 2^133255801 is an apocalyptic number.

It is an amenable number.

133255801 is a deficient number, since it is larger than the sum of its proper divisors (19106503).

133255801 is an equidigital number, since it uses as much as digits as its factorization.

133255801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8751.

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 133255801 is about 11543.6476470828. The cubic root of 133255801 is about 510.7739127986.

The spelling of 133255801 in words is "one hundred thirty-three million, two hundred fifty-five thousand, eight hundred one".