154222442 has 8 divisors (see below), whose sum is σ = 252364032. Its totient is φ = 70101100.

The previous prime is 154222441. The next prime is 154222459. The reversal of 154222442 is 244222451.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (154222441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3505034 + ... + 3505077.

It is an arithmetic number, because the mean of its divisors is an integer number (31545504).

Almost surely, 2^154222442 is an apocalyptic number.

154222442 is a deficient number, since it is larger than the sum of its proper divisors (98141590).

154222442 is a wasteful number, since it uses less digits than its factorization.

154222442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7010124.

The product of its digits is 5120, while the sum is 26.

The square root of 154222442 is about 12418.6328555119. The cubic root of 154222442 is about 536.2687933963.

Adding to 154222442 its reverse (244222451), we get a palindrome (398444893).

Subtracting 154222442 from its reverse (244222451), we obtain a palindrome (90000009).

The spelling of 154222442 in words is "one hundred fifty-four million, two hundred twenty-two thousand, four hundred forty-two".