133230455 has 4 divisors (see below), whose sum is σ = 159876552. Its totient is φ = 106584360.

The previous prime is 133230407. The next prime is 133230463. The reversal of 133230455 is 554032331.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 133230455 - 2⁸ = 133230199 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 3 ways as a sum of consecutive naturals, for example, 13323041 + ... + 13323050.

It is an arithmetic number, because the mean of its divisors is an integer number (39969138).

Almost surely, 2^133230455 is an apocalyptic number.

133230455 is a deficient number, since it is larger than the sum of its proper divisors (26646097).

133230455 is an equidigital number, since it uses as much as digits as its factorization.

133230455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26646096.

The product of its (nonzero) digits is 5400, while the sum is 26.

The square root of 133230455 is about 11542.5497616428. The cubic root of 133230455 is about 510.7415267251.

Adding to 133230455 its reverse (554032331), we get a palindrome (687262786).

The spelling of 133230455 in words is "one hundred thirty-three million, two hundred thirty thousand, four hundred fifty-five".