145012320340 has 24 divisors (see below), whose sum is σ = 307319692680. Its totient is φ = 57472771968.

The previous prime is 145012320307. The next prime is 145012320359. The reversal of 145012320340 is 43023210541.

It can be written as a sum of positive squares in 4 ways, for example, as 18353204676 + 126659115664 = 135474^2 + 355892^2 .

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, 33257527 + ... + 33261886.

It is an arithmetic number, because the mean of its divisors is an integer number (12804987195).

Almost surely, 2^145012320340 is an apocalyptic number.

145012320340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145012320340 is an abundant number, since it is smaller than the sum of its proper divisors (162307372340).

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

145012320340 is a wasteful number, since it uses less digits than its factorization.

145012320340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66519531 (or 66519529 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

Adding to 145012320340 its reverse (43023210541), we get a palindrome (188035530881).

The spelling of 145012320340 in words is "one hundred forty-five billion, twelve million, three hundred twenty thousand, three hundred forty".