154020015212 has 12 divisors (see below), whose sum is σ = 308040030480. Its totient is φ = 66008577936.

The previous prime is 154020015187. The next prime is 154020015221. The reversal of 154020015212 is 212510020451.

154020015212 is an admirable number.

It is a super-2 number, since 2×154020015212² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2750357387 + ... + 2750357442.

It is an arithmetic number, because the mean of its divisors is an integer number (25670002540).

Almost surely, 2^154020015212 is an apocalyptic number.

It is an amenable number.

154020015212 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

154020015212 is a wasteful number, since it uses less digits than its factorization.

154020015212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5500714840 (or 5500714838 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 23.

Adding to 154020015212 its reverse (212510020451), we get a palindrome (366530035663).

The spelling of 154020015212 in words is "one hundred fifty-four billion, twenty million, fifteen thousand, two hundred twelve".