145220224212439 has 2 divisors, whose sum is σ = 145220224212440. Its totient is φ = 145220224212438.

The previous prime is 145220224212409. The next prime is 145220224212443. The reversal of 145220224212439 is 934212422022541.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 145220224212439 - 2¹⁵ = 145220224179671 is a prime.

It is a super-2 number, since 2×145220224212439² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 145220224212395 and 145220224212404.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145220224212409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72610112106219 + 72610112106220.

It is an arithmetic number, because the mean of its divisors is an integer number (72610112106220).

Almost surely, 2^{145220224212439} is an apocalyptic number.

145220224212439 is a deficient number, since it is larger than the sum of its proper divisors (1).

145220224212439 is an equidigital number, since it uses as much as digits as its factorization.

145220224212439 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 552960, while the sum is 43.

The spelling of 145220224212439 in words is "one hundred forty-five trillion, two hundred twenty billion, two hundred twenty-four million, two hundred twelve thousand, four hundred thirty-nine".