145452221443246 has 8 divisors (see below), whose sum is σ = 218178449373744. Its totient is φ = 72726071652000.

The previous prime is 145452221443231. The next prime is 145452221443303. The reversal of 145452221443246 is 642344122254541.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 145452221443246.

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, 14635435 + ... + 22474438.

It is an arithmetic number, because the mean of its divisors is an integer number (27272306171718).

Almost surely, 2^{145452221443246} is an apocalyptic number.

145452221443246 is a deficient number, since it is larger than the sum of its proper divisors (72726227930498).

145452221443246 is a wasteful number, since it uses less digits than its factorization.

145452221443246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39069626.

The product of its digits is 7372800, while the sum is 49.

Adding to 145452221443246 its reverse (642344122254541), we get a palindrome (787796343697787).

The spelling of 145452221443246 in words is "one hundred forty-five trillion, four hundred fifty-two billion, two hundred twenty-one million, four hundred forty-three thousand, two hundred forty-six".