146636387 has 2 divisors, whose sum is σ = 146636388. Its totient is φ = 146636386.

The previous prime is 146636363. The next prime is 146636389. The reversal of 146636387 is 783636641.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 146636387 - 2¹⁸ = 146374243 is a prime.

Together with 146636389, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (146636389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73318193 + 73318194.

It is an arithmetic number, because the mean of its divisors is an integer number (73318194).

Almost surely, 2^146636387 is an apocalyptic number.

146636387 is a deficient number, since it is larger than the sum of its proper divisors (1).

146636387 is an equidigital number, since it uses as much as digits as its factorization.

146636387 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 435456, while the sum is 44.

The square root of 146636387 is about 12109.3512212670. The cubic root of 146636387 is about 527.3276985683.

The spelling of 146636387 in words is "one hundred forty-six million, six hundred thirty-six thousand, three hundred eighty-seven".