146724709 has 2 divisors, whose sum is σ = 146724710. Its totient is φ = 146724708.

The previous prime is 146724673. The next prime is 146724727. The reversal of 146724709 is 907427641.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 84235684 + 62489025 = 9178^2 + 7905^2 .

It is a cyclic number.

It is not a de Polignac number, because 146724709 - 2¹¹ = 146722661 is a prime.

It is a super-2 number, since 2×146724709² = 43056280462269362, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (146724779) 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, 73362354 + 73362355.

It is an arithmetic number, because the mean of its divisors is an integer number (73362355).

Almost surely, 2^146724709 is an apocalyptic number.

It is an amenable number.

146724709 is a deficient number, since it is larger than the sum of its proper divisors (1).

146724709 is an equidigital number, since it uses as much as digits as its factorization.

146724709 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 84672, while the sum is 40.

The square root of 146724709 is about 12112.9975233218. The cubic root of 146724709 is about 527.4335506243.

The spelling of 146724709 in words is "one hundred forty-six million, seven hundred twenty-four thousand, seven hundred nine".