145483640 has 32 divisors (see below), whose sum is σ = 328570560. Its totient is φ = 57974400.

The previous prime is 145483631. The next prime is 145483669. The reversal of 145483640 is 46384541.

It is a self number, because there is not a number n which added to its sum of digits gives 145483640.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4130 + ... + 17550.

It is an arithmetic number, because the mean of its divisors is an integer number (10267830).

Almost surely, 2^145483640 is an apocalyptic number.

145483640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145483640 is an abundant number, since it is smaller than the sum of its proper divisors (183086920).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

145483640 is a wasteful number, since it uses less digits than its factorization.

145483640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13703 (or 13699 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 35.

The square root of 145483640 is about 12061.6599189332. The cubic root of 145483640 is about 525.9422413893.

Subtracting from 145483640 its reverse (46384541), we obtain a palindrome (99099099).

The spelling of 145483640 in words is "one hundred forty-five million, four hundred eighty-three thousand, six hundred forty".