146607997 has 2 divisors, whose sum is σ = 146607998. Its totient is φ = 146607996.

The previous prime is 146607977. The next prime is 146608057. The reversal of 146607997 is 799706641.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 125686521 + 20921476 = 11211^2 + 4574^2 .

It is a cyclic number.

It is not a de Polignac number, because 146607997 - 2¹⁹ = 146083709 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 146607997.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (146607977) 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, 73303998 + 73303999.

It is an arithmetic number, because the mean of its divisors is an integer number (73303999).

Almost surely, 2^146607997 is an apocalyptic number.

It is an amenable number.

146607997 is a deficient number, since it is larger than the sum of its proper divisors (1).

146607997 is an equidigital number, since it uses as much as digits as its factorization.

146607997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 571536, while the sum is 49.

The square root of 146607997 is about 12108.1789299630. The cubic root of 146607997 is about 527.2936647246.

The spelling of 146607997 in words is "one hundred forty-six million, six hundred seven thousand, nine hundred ninety-seven".