154554222 has 16 divisors (see below), whose sum is σ = 309884112. Its totient is φ = 51388800.

The previous prime is 154554209. The next prime is 154554223. The reversal of 154554222 is 222455451.

It is a self number, because there is not a number n which added to its sum of digits gives 154554222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154554223) 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, 29713 + ... + 34524.

It is an arithmetic number, because the mean of its divisors is an integer number (19367757).

Almost surely, 2^154554222 is an apocalyptic number.

154554222 is an abundant number, since it is smaller than the sum of its proper divisors (155329890).

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

154554222 is a wasteful number, since it uses less digits than its factorization.

154554222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64643.

The product of its digits is 16000, while the sum is 30.

The square root of 154554222 is about 12431.9838320358. The cubic root of 154554222 is about 536.6530777693.

The spelling of 154554222 in words is "one hundred fifty-four million, five hundred fifty-four thousand, two hundred twenty-two".