145332140 has 48 divisors (see below), whose sum is σ = 323188320. Its totient is φ = 54743040.

The previous prime is 145332127. The next prime is 145332149. The reversal of 145332140 is 41233541.

145332140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×145332140² = 42242861833959200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (145332149) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67724 + ... + 69836.

It is an arithmetic number, because the mean of its divisors is an integer number (6733090).

Almost surely, 2^145332140 is an apocalyptic number.

145332140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 145332140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (161594160).

145332140 is an abundant number, since it is smaller than the sum of its proper divisors (177856180).

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

145332140 is a wasteful number, since it uses less digits than its factorization.

145332140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2322 (or 2320 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 145332140 is about 12055.3780529687. The cubic root of 145332140 is about 525.7596139268.

Adding to 145332140 its reverse (41233541), we get a palindrome (186565681).

The spelling of 145332140 in words is "one hundred forty-five million, three hundred thirty-two thousand, one hundred forty".