145120012 has 24 divisors (see below), whose sum is σ = 261421776. Its totient is φ = 70448448.

The previous prime is 145119991. The next prime is 145120013. The reversal of 145120012 is 210021541.

It is not an unprimeable number, because it can be changed into a prime (145120013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27318 + ... + 32194.

It is an arithmetic number, because the mean of its divisors is an integer number (10892574).

Almost surely, 2^145120012 is an apocalyptic number.

It is an amenable number.

145120012 is a deficient number, since it is larger than the sum of its proper divisors (116301764).

145120012 is a wasteful number, since it uses less digits than its factorization.

145120012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5097 (or 5095 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 145120012 is about 12046.5767751673. The cubic root of 145120012 is about 525.5036883346.

Adding to 145120012 its reverse (210021541), we get a palindrome (355141553).

The spelling of 145120012 in words is "one hundred forty-five million, one hundred twenty thousand, twelve".