146553321243 has 96 divisors (see below), whose sum is σ = 243724995840. Its totient is φ = 77866064640.

The previous prime is 146553321203. The next prime is 146553321289. The reversal of 146553321243 is 342123355641.

It is not a de Polignac number, because 146553321243 - 2⁶ = 146553321179 is a prime.

It is not an unprimeable number, because it can be changed into a prime (146553321203) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 134083005 + ... + 134084097.

It is an arithmetic number, because the mean of its divisors is an integer number (2538802040).

Almost surely, 2^146553321243 is an apocalyptic number.

146553321243 is a deficient number, since it is larger than the sum of its proper divisors (97171674597).

146553321243 is a wasteful number, since it uses less digits than its factorization.

146553321243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1977 (or 1970 counting only the distinct ones).

The product of its digits is 259200, while the sum is 39.

Adding to 146553321243 its reverse (342123355641), we get a palindrome (488676676884).

The spelling of 146553321243 in words is "one hundred forty-six billion, five hundred fifty-three million, three hundred twenty-one thousand, two hundred forty-three".