145628039 has 2 divisors, whose sum is σ = 145628040. Its totient is φ = 145628038.

The previous prime is 145628017. The next prime is 145628071. The reversal of 145628039 is 930826541.

It is a happy number.

145628039 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is an emirp because it is prime and its reverse (930826541) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 145628039 - 2¹⁶ = 145562503 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 145627993 and 145628011.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145628009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72814019 + 72814020.

It is an arithmetic number, because the mean of its divisors is an integer number (72814020).

Almost surely, 2^145628039 is an apocalyptic number.

145628039 is a deficient number, since it is larger than the sum of its proper divisors (1).

145628039 is an equidigital number, since it uses as much as digits as its factorization.

145628039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 145628039 is about 12067.6443020169. The cubic root of 145628039 is about 526.1161908935.

The spelling of 145628039 in words is "one hundred forty-five million, six hundred twenty-eight thousand, thirty-nine".