145025340 has 24 divisors (see below), whose sum is σ = 406071120. Its totient is φ = 38673408.

The previous prime is 145025297. The next prime is 145025359. The reversal of 145025340 is 43520541.

It is a self number, because there is not a number n which added to its sum of digits gives 145025340.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1208485 + ... + 1208604.

It is an arithmetic number, because the mean of its divisors is an integer number (16919630).

Almost surely, 2^145025340 is an apocalyptic number.

145025340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145025340 is an abundant number, since it is smaller than the sum of its proper divisors (261045780).

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

145025340 is a wasteful number, since it uses less digits than its factorization.

145025340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2417101 (or 2417099 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 145025340 is about 12042.6467190564. The cubic root of 145025340 is about 525.3893891257.

Adding to 145025340 its reverse (43520541), we get a palindrome (188545881).

The spelling of 145025340 in words is "one hundred forty-five million, twenty-five thousand, three hundred forty".