145003979 has 2 divisors, whose sum is σ = 145003980. Its totient is φ = 145003978.

The previous prime is 145003961. The next prime is 145003981. The reversal of 145003979 is 979300541.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (979300541) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 145003979 - 2⁸ = 145003723 is a prime.

Together with 145003981, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (145003909) 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, 72501989 + 72501990.

It is an arithmetic number, because the mean of its divisors is an integer number (72501990).

Almost surely, 2^145003979 is an apocalyptic number.

145003979 is a deficient number, since it is larger than the sum of its proper divisors (1).

145003979 is an equidigital number, since it uses as much as digits as its factorization.

145003979 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34020, while the sum is 38.

The square root of 145003979 is about 12041.7597966410. The cubic root of 145003979 is about 525.3635927286.

The spelling of 145003979 in words is "one hundred forty-five million, three thousand, nine hundred seventy-nine".