145243424 has 24 divisors (see below), whose sum is σ = 286216560. Its totient is φ = 72553536.

The previous prime is 145243411. The next prime is 145243447. The reversal of 145243424 is 424342541.

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, 65567 + ... + 67745.

It is an arithmetic number, because the mean of its divisors is an integer number (11925690).

Almost surely, 2^145243424 is an apocalyptic number.

It is an amenable number.

145243424 is a deficient number, since it is larger than the sum of its proper divisors (140973136).

145243424 is a wasteful number, since it uses less digits than its factorization.

145243424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4272 (or 4264 counting only the distinct ones).

The product of its digits is 15360, while the sum is 29.

The square root of 145243424 is about 12051.6979716553. The cubic root of 145243424 is about 525.6526112499.

Adding to 145243424 its reverse (424342541), we get a palindrome (569585965).

The spelling of 145243424 in words is "one hundred forty-five million, two hundred forty-three thousand, four hundred twenty-four".