145413422009 has 2 divisors, whose sum is σ = 145413422010. Its totient is φ = 145413422008.

The previous prime is 145413421987. The next prime is 145413422017. The reversal of 145413422009 is 900224314541.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 75372211600 + 70041210409 = 274540^2 + 264653^2 .

It is an emirp because it is prime and its reverse (900224314541) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-145413422009 is a prime.

It is a super-2 number, since 2×145413422009² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 145413422009.

It is not a weakly prime, because it can be changed into another prime (145413422039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72706711004 + 72706711005.

It is an arithmetic number, because the mean of its divisors is an integer number (72706711005).

Almost surely, 2^145413422009 is an apocalyptic number.

It is an amenable number.

145413422009 is a deficient number, since it is larger than the sum of its proper divisors (1).

145413422009 is an equidigital number, since it uses as much as digits as its factorization.

145413422009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34560, while the sum is 35.

The spelling of 145413422009 in words is "one hundred forty-five billion, four hundred thirteen million, four hundred twenty-two thousand, nine".