145121603647 has 2 divisors, whose sum is σ = 145121603648. Its totient is φ = 145121603646.

The previous prime is 145121603609. The next prime is 145121603687. The reversal of 145121603647 is 746306121541.

It is an a-pointer prime, because the next prime (145121603687) can be obtained adding 145121603647 to its sum of digits (40).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 145121603647 - 2³¹ = 142974119999 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145121603687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72560801823 + 72560801824.

It is an arithmetic number, because the mean of its divisors is an integer number (72560801824).

Almost surely, 2^145121603647 is an apocalyptic number.

145121603647 is a deficient number, since it is larger than the sum of its proper divisors (1).

145121603647 is an equidigital number, since it uses as much as digits as its factorization.

145121603647 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120960, while the sum is 40.

The spelling of 145121603647 in words is "one hundred forty-five billion, one hundred twenty-one million, six hundred three thousand, six hundred forty-seven".