146631832021 has 2 divisors, whose sum is σ = 146631832022. Its totient is φ = 146631832020.

The previous prime is 146631831959. The next prime is 146631832063. The reversal of 146631832021 is 120238136641.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 146333026225 + 298805796 = 382535^2 + 17286^2 .

It is a cyclic number.

It is not a de Polignac number, because 146631832021 - 2²¹ = 146629734869 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (146631802021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73315916010 + 73315916011.

It is an arithmetic number, because the mean of its divisors is an integer number (73315916011).

Almost surely, 2^146631832021 is an apocalyptic number.

It is an amenable number.

146631832021 is a deficient number, since it is larger than the sum of its proper divisors (1).

146631832021 is an equidigital number, since it uses as much as digits as its factorization.

146631832021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 41472, while the sum is 37.

Adding to 146631832021 its reverse (120238136641), we get a palindrome (266869968662).

The spelling of 146631832021 in words is "one hundred forty-six billion, six hundred thirty-one million, eight hundred thirty-two thousand, twenty-one".