145232452 has 12 divisors (see below), whose sum is σ = 254358720. Its totient is φ = 72558536.

The previous prime is 145232443. The next prime is 145232497. The reversal of 145232452 is 254232541.

It is a super-2 number, since 2×145232452² = 42184930227864608, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 145232452.

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, 8488 + ... + 19039.

It is an arithmetic number, because the mean of its divisors is an integer number (21196560).

Almost surely, 2^145232452 is an apocalyptic number.

It is an amenable number.

145232452 is a deficient number, since it is larger than the sum of its proper divisors (109126268).

145232452 is a wasteful number, since it uses less digits than its factorization.

145232452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28850 (or 28848 counting only the distinct ones).

The product of its digits is 9600, while the sum is 28.

The square root of 145232452 is about 12051.2427574919. The cubic root of 145232452 is about 525.6393746078.

Adding to 145232452 its reverse (254232541), we get a palindrome (399464993).

The spelling of 145232452 in words is "one hundred forty-five million, two hundred thirty-two thousand, four hundred fifty-two".