145045252 has 24 divisors (see below), whose sum is σ = 277804800. Its totient is φ = 65715360.

The previous prime is 145045237. The next prime is 145045253. The reversal of 145045252 is 252540541.

It is a self number, because there is not a number n which added to its sum of digits gives 145045252.

It is not an unprimeable number, because it can be changed into a prime (145045253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8749 + ... + 19147.

It is an arithmetic number, because the mean of its divisors is an integer number (11575200).

Almost surely, 2^145045252 is an apocalyptic number.

It is an amenable number.

145045252 is a deficient number, since it is larger than the sum of its proper divisors (132759548).

145045252 is a wasteful number, since it uses less digits than its factorization.

145045252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10731 (or 10729 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 28.

The square root of 145045252 is about 12043.4734192425. The cubic root of 145045252 is about 525.4134333715.

Adding to 145045252 its reverse (252540541), we get a palindrome (397585793).

The spelling of 145045252 in words is "one hundred forty-five million, forty-five thousand, two hundred fifty-two".