146640113 has 4 divisors (see below), whose sum is σ = 155266020. Its totient is φ = 138014208.

The previous prime is 146640107. The next prime is 146640209. The reversal of 146640113 is 311046641.

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 135303424 + 11336689 = 11632^2 + 3367^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-146640113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (146642113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4312928 + ... + 4312961.

It is an arithmetic number, because the mean of its divisors is an integer number (38816505).

Almost surely, 2^146640113 is an apocalyptic number.

It is an amenable number.

146640113 is a deficient number, since it is larger than the sum of its proper divisors (8625907).

146640113 is an equidigital number, since it uses as much as digits as its factorization.

146640113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8625906.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 146640113 is about 12109.5050683337. The cubic root of 146640113 is about 527.3321649594.

Adding to 146640113 its reverse (311046641), we get a palindrome (457686754).

The spelling of 146640113 in words is "one hundred forty-six million, six hundred forty thousand, one hundred thirteen".