146221313524 has 96 divisors (see below), whose sum is σ = 309164397696. Its totient is φ = 59630138880.

The previous prime is 146221313431. The next prime is 146221313549. The reversal of 146221313524 is 425313122641.

It is a self number, because there is not a number n which added to its sum of digits gives 146221313524.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3221274 + ... + 3266350.

It is an arithmetic number, because the mean of its divisors is an integer number (3220462476).

Almost surely, 2^146221313524 is an apocalyptic number.

It is an amenable number.

146221313524 is an abundant number, since it is smaller than the sum of its proper divisors (162943084172).

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

146221313524 is a wasteful number, since it uses less digits than its factorization.

146221313524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45265 (or 45263 counting only the distinct ones).

The product of its digits is 34560, while the sum is 34.

The spelling of 146221313524 in words is "one hundred forty-six billion, two hundred twenty-one million, three hundred thirteen thousand, five hundred twenty-four".