145432280 has 64 divisors (see below), whose sum is σ = 395979840. Its totient is φ = 46927872.

The previous prime is 145432271. The next prime is 145432291. The reversal of 145432280 is 82234541.

It is a happy number.

145432280 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10517 + ... + 20036.

It is an arithmetic number, because the mean of its divisors is an integer number (6187185).

Almost surely, 2^145432280 is an apocalyptic number.

145432280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145432280 is an abundant number, since it is smaller than the sum of its proper divisors (250547560).

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

145432280 is a wasteful number, since it uses less digits than its factorization.

145432280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30588 (or 30584 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 29.

The square root of 145432280 is about 12059.5306708014. The cubic root of 145432280 is about 525.8803430827.

The spelling of 145432280 in words is "one hundred forty-five million, four hundred thirty-two thousand, two hundred eighty".