145462813 has 2 divisors, whose sum is σ = 145462814. Its totient is φ = 145462812.

The previous prime is 145462763. The next prime is 145462817. The reversal of 145462813 is 318264541.

145462813 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., 94225849 + 51236964 = 9707^2 + 7158^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-145462813 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145462817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72731406 + 72731407.

It is an arithmetic number, because the mean of its divisors is an integer number (72731407).

Almost surely, 2^145462813 is an apocalyptic number.

It is an amenable number.

145462813 is a deficient number, since it is larger than the sum of its proper divisors (1).

145462813 is an equidigital number, since it uses as much as digits as its factorization.

145462813 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23040, while the sum is 34.

The square root of 145462813 is about 12060.7965325678. The cubic root of 145462813 is about 525.9171427555.

The spelling of 145462813 in words is "one hundred forty-five million, four hundred sixty-two thousand, eight hundred thirteen".