154002222 has 48 divisors (see below), whose sum is σ = 377500032. Its totient is φ = 46665720.

The previous prime is 154002197. The next prime is 154002263. The reversal of 154002222 is 222200451.

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 = 154002195 and 154002204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9058 + ... + 19749.

It is an arithmetic number, because the mean of its divisors is an integer number (7864584).

Almost surely, 2^154002222 is an apocalyptic number.

154002222 is an abundant number, since it is smaller than the sum of its proper divisors (223497810).

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

154002222 is a wasteful number, since it uses less digits than its factorization.

154002222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28835 (or 28823 counting only the distinct ones).

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

The square root of 154002222 is about 12409.7631725992. The cubic root of 154002222 is about 536.0134190410.

Adding to 154002222 its reverse (222200451), we get a palindrome (376202673).

The spelling of 154002222 in words is "one hundred fifty-four million, two thousand, two hundred twenty-two".