145919713 has 2 divisors, whose sum is σ = 145919714. Its totient is φ = 145919712.

The previous prime is 145919707. The next prime is 145919737. The reversal of 145919713 is 317919541.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 143448529 + 2471184 = 11977^2 + 1572^2 .

It is an emirp because it is prime and its reverse (317919541) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 145919713 - 2¹⁷ = 145788641 is a prime.

It is not a weakly prime, because it can be changed into another prime (145919113) 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, 72959856 + 72959857.

It is an arithmetic number, because the mean of its divisors is an integer number (72959857).

Almost surely, 2^145919713 is an apocalyptic number.

It is an amenable number.

145919713 is a deficient number, since it is larger than the sum of its proper divisors (1).

145919713 is an equidigital number, since it uses as much as digits as its factorization.

145919713 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34020, while the sum is 40.

The square root of 145919713 is about 12079.7232170278. The cubic root of 145919713 is about 526.4672040615.

The spelling of 145919713 in words is "one hundred forty-five million, nine hundred nineteen thousand, seven hundred thirteen".