145515259 has 2 divisors, whose sum is σ = 145515260. Its totient is φ = 145515258.

The previous prime is 145515241. The next prime is 145515269. The reversal of 145515259 is 952515541.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 145515259 - 2¹¹ = 145513211 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (145515269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72757629 + 72757630.

It is an arithmetic number, because the mean of its divisors is an integer number (72757630).

Almost surely, 2^145515259 is an apocalyptic number.

145515259 is a deficient number, since it is larger than the sum of its proper divisors (1).

145515259 is an equidigital number, since it uses as much as digits as its factorization.

145515259 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 45000, while the sum is 37.

The square root of 145515259 is about 12062.9705711321. The cubic root of 145515259 is about 525.9803408923.

The spelling of 145515259 in words is "one hundred forty-five million, five hundred fifteen thousand, two hundred fifty-nine".