145201523 has 2 divisors, whose sum is σ = 145201524. Its totient is φ = 145201522.

The previous prime is 145201501. The next prime is 145201547. The reversal of 145201523 is 325102541.

It is a weak prime.

It is an emirp because it is prime and its reverse (325102541) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 145201523 - 2²² = 141007219 is a prime.

It is not a weakly prime, because it can be changed into another prime (145201123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72600761 + 72600762.

It is an arithmetic number, because the mean of its divisors is an integer number (72600762).

Almost surely, 2^145201523 is an apocalyptic number.

145201523 is a deficient number, since it is larger than the sum of its proper divisors (1).

145201523 is an equidigital number, since it uses as much as digits as its factorization.

145201523 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 145201523 is about 12049.9594605127. The cubic root of 145201523 is about 525.6020582132.

The spelling of 145201523 in words is "one hundred forty-five million, two hundred one thousand, five hundred twenty-three".