145122345105461 has 2 divisors, whose sum is σ = 145122345105462. Its totient is φ = 145122345105460.

The previous prime is 145122345105427. The next prime is 145122345105469. The reversal of 145122345105461 is 164501543221541.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 111223389062500 + 33898956042961 = 10546250^2 + 5822281^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-145122345105461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145122345105469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72561172552730 + 72561172552731.

It is an arithmetic number, because the mean of its divisors is an integer number (72561172552731).

Almost surely, 2^{145122345105461} is an apocalyptic number.

It is an amenable number.

145122345105461 is a deficient number, since it is larger than the sum of its proper divisors (1).

145122345105461 is an equidigital number, since it uses as much as digits as its factorization.

145122345105461 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576000, while the sum is 44.

The spelling of 145122345105461 in words is "one hundred forty-five trillion, one hundred twenty-two billion, three hundred forty-five million, one hundred five thousand, four hundred sixty-one".