133228254 has 16 divisors (see below), whose sum is σ = 270973440. Its totient is φ = 43656600.

The previous prime is 133228241. The next prime is 133228267. The reversal of 133228254 is 452822331.

It is an interprime number because it is at equal distance from previous prime (133228241) and next prime (133228267).

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, 187822 + ... + 188529.

It is an arithmetic number, because the mean of its divisors is an integer number (16935840).

Almost surely, 2^133228254 is an apocalyptic number.

133228254 is an abundant number, since it is smaller than the sum of its proper divisors (137745186).

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

133228254 is a wasteful number, since it uses less digits than its factorization.

133228254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 376415.

The product of its digits is 11520, while the sum is 30.

The square root of 133228254 is about 11542.4544183635. The cubic root of 133228254 is about 510.7387141842.

The spelling of 133228254 in words is "one hundred thirty-three million, two hundred twenty-eight thousand, two hundred fifty-four".