146879917 has 4 divisors (see below), whose sum is σ = 150462396. Its totient is φ = 143297440.

The previous prime is 146879911. The next prime is 146879921. The reversal of 146879917 is 719978641.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 67420521 + 79459396 = 8211^2 + 8914^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-146879917 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (146879911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1791178 + ... + 1791259.

It is an arithmetic number, because the mean of its divisors is an integer number (37615599).

Almost surely, 2^146879917 is an apocalyptic number.

It is an amenable number.

146879917 is a deficient number, since it is larger than the sum of its proper divisors (3582479).

146879917 is an equidigital number, since it uses as much as digits as its factorization.

146879917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3582478.

The product of its digits is 762048, while the sum is 52.

The square root of 146879917 is about 12119.4025017738. The cubic root of 146879917 is about 527.6194612753.

The spelling of 146879917 in words is "one hundred forty-six million, eight hundred seventy-nine thousand, nine hundred seventeen".