145204012 has 12 divisors (see below), whose sum is σ = 254817360. Its totient is φ = 72399056.

The previous prime is 145203977. The next prime is 145204019. The reversal of 145204012 is 210402541.

It is a super-2 number, since 2×145204012² = 42168410201792288, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (145204019) 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 3 ways as a sum of consecutive naturals, for example, 49123 + ... + 51994.

It is an arithmetic number, because the mean of its divisors is an integer number (21234780).

Almost surely, 2^145204012 is an apocalyptic number.

It is an amenable number.

145204012 is a deficient number, since it is larger than the sum of its proper divisors (109613348).

145204012 is a wasteful number, since it uses less digits than its factorization.

145204012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101480 (or 101478 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 145204012 is about 12050.0627384259. The cubic root of 145204012 is about 525.6050614325.

Adding to 145204012 its reverse (210402541), we get a palindrome (355606553).

The spelling of 145204012 in words is "one hundred forty-five million, two hundred four thousand, twelve".