145523012 has 12 divisors (see below), whose sum is σ = 254751420. Its totient is φ = 72736896.

The previous prime is 145523011. The next prime is 145523017. The reversal of 145523012 is 210325541.

It can be written as a sum of positive squares in 2 ways, for example, as 103713856 + 41809156 = 10184^2 + 6466^2 .

It is not an unprimeable number, because it can be changed into a prime (145523011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16064 + ... + 23432.

It is an arithmetic number, because the mean of its divisors is an integer number (21229285).

Almost surely, 2^145523012 is an apocalyptic number.

It is an amenable number.

145523012 is a deficient number, since it is larger than the sum of its proper divisors (109228408).

145523012 is a wasteful number, since it uses less digits than its factorization.

145523012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12310 (or 12308 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 145523012 is about 12063.2919221911. The cubic root of 145523012 is about 525.9896820734.

Adding to 145523012 its reverse (210325541), we get a palindrome (355848553).

The spelling of 145523012 in words is "one hundred forty-five million, five hundred twenty-three thousand, twelve".