146289363721 has 2 divisors, whose sum is σ = 146289363722. Its totient is φ = 146289363720.

The previous prime is 146289363697. The next prime is 146289363799. The reversal of 146289363721 is 127363982641.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 125801449225 + 20487914496 = 354685^2 + 143136^2 .

It is a cyclic number.

It is not a de Polignac number, because 146289363721 - 2¹⁵ = 146289330953 is a prime.

It is not a weakly prime, because it can be changed into another prime (146289366721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73144681860 + 73144681861.

It is an arithmetic number, because the mean of its divisors is an integer number (73144681861).

Almost surely, 2^146289363721 is an apocalyptic number.

It is an amenable number.

146289363721 is a deficient number, since it is larger than the sum of its proper divisors (1).

146289363721 is an equidigital number, since it uses as much as digits as its factorization.

146289363721 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2612736, while the sum is 52.

The spelling of 146289363721 in words is "one hundred forty-six billion, two hundred eighty-nine million, three hundred sixty-three thousand, seven hundred twenty-one".