154200222 has 72 divisors (see below), whose sum is σ = 372094632. Its totient is φ = 46110240.

The previous prime is 154200209. The next prime is 154200223. The reversal of 154200222 is 222002451.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 154200195 and 154200204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154200223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 180348 + ... + 181200.

It is an arithmetic number, because the mean of its divisors is an integer number (5167981).

Almost surely, 2^154200222 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 154200222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (186047316).

154200222 is an abundant number, since it is smaller than the sum of its proper divisors (217894410).

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

154200222 is a wasteful number, since it uses less digits than its factorization.

154200222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 966 (or 952 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 154200222 is about 12417.7381998494. The cubic root of 154200222 is about 536.2430373849.

Adding to 154200222 its reverse (222002451), we get a palindrome (376202673).

The spelling of 154200222 in words is "one hundred fifty-four million, two hundred thousand, two hundred twenty-two".