145144012 has 24 divisors (see below), whose sum is σ = 278182800. Its totient is φ = 65852736.

The previous prime is 145144003. The next prime is 145144039. The reversal of 145144012 is 210441541.

It is a super-2 number, since 2×145144012² = 42133568438912288, which contains 22 as substring.

It is an unprimeable number.

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, 20587 + ... + 26722.

It is an arithmetic number, because the mean of its divisors is an integer number (11590950).

Almost surely, 2^145144012 is an apocalyptic number.

It is an amenable number.

145144012 is a deficient number, since it is larger than the sum of its proper divisors (133038788).

145144012 is a wasteful number, since it uses less digits than its factorization.

145144012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47385 (or 47383 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 145144012 is about 12047.5728675945. The cubic root of 145144012 is about 525.5326560677.

Adding to 145144012 its reverse (210441541), we get a palindrome (355585553).

The spelling of 145144012 in words is "one hundred forty-five million, one hundred forty-four thousand, twelve".