145040279 has 2 divisors, whose sum is σ = 145040280. Its totient is φ = 145040278.

The previous prime is 145040267. The next prime is 145040293. The reversal of 145040279 is 972040541.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-145040279 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145040219) 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, 72520139 + 72520140.

It is an arithmetic number, because the mean of its divisors is an integer number (72520140).

Almost surely, 2^145040279 is an apocalyptic number.

145040279 is a deficient number, since it is larger than the sum of its proper divisors (1).

145040279 is an equidigital number, since it uses as much as digits as its factorization.

145040279 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 145040279 is about 12043.2669571010. The cubic root of 145040279 is about 525.4074285539.

The spelling of 145040279 in words is "one hundred forty-five million, forty thousand, two hundred seventy-nine".