145713979 has 2 divisors, whose sum is σ = 145713980. Its totient is φ = 145713978.

The previous prime is 145713977. The next prime is 145713989. The reversal of 145713979 is 979317541.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 145713979 - 2¹ = 145713977 is a prime.

Together with 145713977, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (145713973) 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, 72856989 + 72856990.

It is an arithmetic number, because the mean of its divisors is an integer number (72856990).

Almost surely, 2^145713979 is an apocalyptic number.

145713979 is a deficient number, since it is larger than the sum of its proper divisors (1).

145713979 is an equidigital number, since it uses as much as digits as its factorization.

145713979 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 238140, while the sum is 46.

The square root of 145713979 is about 12071.2045380732. The cubic root of 145713979 is about 526.2196634905.

The spelling of 145713979 in words is "one hundred forty-five million, seven hundred thirteen thousand, nine hundred seventy-nine".