145123252 has 12 divisors (see below), whose sum is σ = 256584580. Its totient is φ = 71813376.

The previous prime is 145123247. The next prime is 145123283. The reversal of 145123252 is 252321541.

145123252 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 37503376 + 107619876 = 6124^2 + 10374^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 186627 + ... + 187402.

Almost surely, 2^145123252 is an apocalyptic number.

It is an amenable number.

145123252 is a deficient number, since it is larger than the sum of its proper divisors (111461328).

145123252 is a wasteful number, since it uses less digits than its factorization.

145123252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374130 (or 374128 counting only the distinct ones).

The product of its digits is 2400, while the sum is 25.

The square root of 145123252 is about 12046.7112524539. The cubic root of 145123252 is about 525.5075991650.

Adding to 145123252 its reverse (252321541), we get a palindrome (397444793).

The spelling of 145123252 in words is "one hundred forty-five million, one hundred twenty-three thousand, two hundred fifty-two".