154442212 has 24 divisors (see below), whose sum is σ = 291578616. Its totient is φ = 71305728.

The previous prime is 154442173. The next prime is 154442213. The reversal of 154442212 is 212244451.

It can be written as a sum of positive squares in 4 ways, for example, as 114575616 + 39866596 = 10704^2 + 6314^2 .

It is not an unprimeable number, because it can be changed into a prime (154442213) 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 7 ways as a sum of consecutive naturals, for example, 17823 + ... + 25030.

It is an arithmetic number, because the mean of its divisors is an integer number (12149109).

Almost surely, 2^154442212 is an apocalyptic number.

It is an amenable number.

154442212 is a deficient number, since it is larger than the sum of its proper divisors (137136404).

154442212 is a wasteful number, since it uses less digits than its factorization.

154442212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42927 (or 42925 counting only the distinct ones).

The product of its digits is 2560, while the sum is 25.

The square root of 154442212 is about 12427.4781029781. The cubic root of 154442212 is about 536.5234036705.

Adding to 154442212 its reverse (212244451), we get a palindrome (366686663).

The spelling of 154442212 in words is "one hundred fifty-four million, four hundred forty-two thousand, two hundred twelve".