145989560 has 32 divisors (see below), whose sum is σ = 334679040. Its totient is φ = 57293184.

The previous prime is 145989539. The next prime is 145989577. The reversal of 145989560 is 65989541.

It is a happy number.

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, 32312 + ... + 36551.

It is an arithmetic number, because the mean of its divisors is an integer number (10458720).

Almost surely, 2^145989560 is an apocalyptic number.

145989560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145989560 is an abundant number, since it is smaller than the sum of its proper divisors (188689480).

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

145989560 is a wasteful number, since it uses less digits than its factorization.

145989560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68927 (or 68923 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 47.

The square root of 145989560 is about 12082.6139555975. The cubic root of 145989560 is about 526.5511915466.

It can be divided in two parts, 1459 and 89560, that added together give a palindrome (91019).

The spelling of 145989560 in words is "one hundred forty-five million, nine hundred eighty-nine thousand, five hundred sixty".