145227040 has 96 divisors (see below), whose sum is σ = 395587584. Its totient is φ = 49351680.

The previous prime is 145227029. The next prime is 145227053. The reversal of 145227040 is 40722541.

145227040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 145226996 and 145227014.

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, 141730 + ... + 142750.

It is an arithmetic number, because the mean of its divisors is an integer number (4120704).

Almost surely, 2^145227040 is an apocalyptic number.

145227040 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 145227040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (197793792).

145227040 is an abundant number, since it is smaller than the sum of its proper divisors (250360544).

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

145227040 is a wasteful number, since it uses less digits than its factorization.

145227040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1170 (or 1162 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 25.

The square root of 145227040 is about 12051.0182142423. The cubic root of 145227040 is about 525.6328453149.

Adding to 145227040 its reverse (40722541), we get a palindrome (185949581).

The spelling of 145227040 in words is "one hundred forty-five million, two hundred twenty-seven thousand, forty".