145567979 has 2 divisors, whose sum is σ = 145567980. Its totient is φ = 145567978.

The previous prime is 145567951. The next prime is 145567993. The reversal of 145567979 is 979765541.

145567979 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 is a cyclic number.

It is not a de Polignac number, because 145567979 - 2¹⁶ = 145502443 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 145567979.

It is not a weakly prime, because it can be changed into another prime (142567979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72783989 + 72783990.

It is an arithmetic number, because the mean of its divisors is an integer number (72783990).

Almost surely, 2^145567979 is an apocalyptic number.

145567979 is a deficient number, since it is larger than the sum of its proper divisors (1).

145567979 is an equidigital number, since it uses as much as digits as its factorization.

145567979 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2381400, while the sum is 53.

The square root of 145567979 is about 12065.1555729713. The cubic root of 145567979 is about 526.0438539003.

The spelling of 145567979 in words is "one hundred forty-five million, five hundred sixty-seven thousand, nine hundred seventy-nine".