146221313525 has 48 divisors (see below), whose sum is σ = 209379944064. Its totient is φ = 99222036480.

The previous prime is 146221313431. The next prime is 146221313549. The reversal of 146221313525 is 525313122641.

146221313525 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 146221313525 - 2²⁶ = 146154204661 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 13303082 + ... + 13314068.

It is an arithmetic number, because the mean of its divisors is an integer number (4362082168).

Almost surely, 2^146221313525 is an apocalyptic number.

It is an amenable number.

146221313525 is a deficient number, since it is larger than the sum of its proper divisors (63158630539).

146221313525 is a wasteful number, since it uses less digits than its factorization.

146221313525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11790 (or 11785 counting only the distinct ones).

The product of its digits is 43200, while the sum is 35.

The spelling of 146221313525 in words is "one hundred forty-six billion, two hundred twenty-one million, three hundred thirteen thousand, five hundred twenty-five".