146020981309 has 16 divisors (see below), whose sum is σ = 170967718656. Its totient is φ = 122096476800.

The previous prime is 146020981307. The next prime is 146020981343. The reversal of 146020981309 is 903189020641.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 146020981309 - 2¹ = 146020981307 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (146020981307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4366119 + ... + 4399435.

It is an arithmetic number, because the mean of its divisors is an integer number (10685482416).

Almost surely, 2^146020981309 is an apocalyptic number.

It is an amenable number.

146020981309 is a deficient number, since it is larger than the sum of its proper divisors (24946737347).

146020981309 is a wasteful number, since it uses less digits than its factorization.

146020981309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48636.

The product of its (nonzero) digits is 93312, while the sum is 43.

The spelling of 146020981309 in words is "one hundred forty-six billion, twenty million, nine hundred eighty-one thousand, three hundred nine".