145635859 has 2 divisors, whose sum is σ = 145635860. Its totient is φ = 145635858.

The previous prime is 145635827. The next prime is 145635871. The reversal of 145635859 is 958536541.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 145635859 - 2⁵ = 145635827 is a prime.

It is not a weakly prime, because it can be changed into another prime (145635899) 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 as a sum of consecutive naturals, namely, 72817929 + 72817930.

It is an arithmetic number, because the mean of its divisors is an integer number (72817930).

Almost surely, 2^145635859 is an apocalyptic number.

145635859 is a deficient number, since it is larger than the sum of its proper divisors (1).

145635859 is an equidigital number, since it uses as much as digits as its factorization.

145635859 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 648000, while the sum is 46.

The square root of 145635859 is about 12067.9683045656. The cubic root of 145635859 is about 526.1256079329.

The spelling of 145635859 in words is "one hundred forty-five million, six hundred thirty-five thousand, eight hundred fifty-nine".