145794013 has 2 divisors, whose sum is σ = 145794014. Its totient is φ = 145794012.

The previous prime is 145793971. The next prime is 145794017. The reversal of 145794013 is 310497541.

145794013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 124835929 + 20958084 = 11173^2 + 4578^2 .

It is an emirp because it is prime and its reverse (310497541) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 145794013 - 2¹⁷ = 145662941 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 145794013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145794017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72897006 + 72897007.

It is an arithmetic number, because the mean of its divisors is an integer number (72897007).

Almost surely, 2^145794013 is an apocalyptic number.

It is an amenable number.

145794013 is a deficient number, since it is larger than the sum of its proper divisors (1).

145794013 is an equidigital number, since it uses as much as digits as its factorization.

145794013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 145794013 is about 12074.5191622689. The cubic root of 145794013 is about 526.3159886257.

The spelling of 145794013 in words is "one hundred forty-five million, seven hundred ninety-four thousand, thirteen".