145252231112213 has 16 divisors (see below), whose sum is σ = 147511154725632. Its totient is φ = 142999259760000.

The previous prime is 145252231112207. The next prime is 145252231112237. The reversal of 145252231112213 is 312211132252541.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 145252231112213 - 2⁸ = 145252231111957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145252231114213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 668175488 + ... + 668392838.

It is an arithmetic number, because the mean of its divisors is an integer number (9219447170352).

Almost surely, 2^{145252231112213} is an apocalyptic number.

It is an amenable number.

145252231112213 is a deficient number, since it is larger than the sum of its proper divisors (2258923613419).

145252231112213 is a wasteful number, since it uses less digits than its factorization.

145252231112213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230996.

The product of its digits is 28800, while the sum is 35.

Adding to 145252231112213 its reverse (312211132252541), we get a palindrome (457463363364754).

The spelling of 145252231112213 in words is "one hundred forty-five trillion, two hundred fifty-two billion, two hundred thirty-one million, one hundred twelve thousand, two hundred thirteen".