145447225340 has 12 divisors (see below), whose sum is σ = 305439173256. Its totient is φ = 58178890128.

The previous prime is 145447225291. The next prime is 145447225369. The reversal of 145447225340 is 43522744541.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3636180614 + ... + 3636180653.

It is an arithmetic number, because the mean of its divisors is an integer number (25453264438).

Almost surely, 2^145447225340 is an apocalyptic number.

145447225340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145447225340 is an abundant number, since it is smaller than the sum of its proper divisors (159991947916).

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

145447225340 is a wasteful number, since it uses less digits than its factorization.

145447225340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7272361276 (or 7272361274 counting only the distinct ones).

The product of its (nonzero) digits is 537600, while the sum is 41.

Adding to 145447225340 its reverse (43522744541), we get a palindrome (188969969881).

The spelling of 145447225340 in words is "one hundred forty-five billion, four hundred forty-seven million, two hundred twenty-five thousand, three hundred forty".