145224342997 has 2 divisors, whose sum is σ = 145224342998. Its totient is φ = 145224342996.

The previous prime is 145224342973. The next prime is 145224343013. The reversal of 145224342997 is 799243422541.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 80239626756 + 64984716241 = 283266^2 + 254921^2 .

It is a cyclic number.

It is not a de Polignac number, because 145224342997 - 2¹⁵ = 145224310229 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145224343997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72612171498 + 72612171499.

It is an arithmetic number, because the mean of its divisors is an integer number (72612171499).

Almost surely, 2^145224342997 is an apocalyptic number.

It is an amenable number.

145224342997 is a deficient number, since it is larger than the sum of its proper divisors (1).

145224342997 is an equidigital number, since it uses as much as digits as its factorization.

145224342997 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4354560, while the sum is 52.

The spelling of 145224342997 in words is "one hundred forty-five billion, two hundred twenty-four million, three hundred forty-two thousand, nine hundred ninety-seven".