145300204240 has 20 divisors (see below), whose sum is σ = 337822975044. Its totient is φ = 58120081664.

The previous prime is 145300204213. The next prime is 145300204243. The reversal of 145300204240 is 42402003541.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 60423539344 + 84876664896 = 245812^2 + 291336^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×145300204240² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145300204243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 908126197 + ... + 908126356.

Almost surely, 2^145300204240 is an apocalyptic number.

145300204240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145300204240 is an abundant number, since it is smaller than the sum of its proper divisors (192522770804).

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

145300204240 is a wasteful number, since it uses less digits than its factorization.

145300204240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1816252566 (or 1816252560 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

Adding to 145300204240 its reverse (42402003541), we get a palindrome (187702207781).

The spelling of 145300204240 in words is "one hundred forty-five billion, three hundred million, two hundred four thousand, two hundred forty".