145025520097 has 2 divisors, whose sum is σ = 145025520098. Its totient is φ = 145025520096.

The previous prime is 145025520077. The next prime is 145025520137. The reversal of 145025520097 is 790025520541.

It is a happy number.

It is an a-pointer prime, because the next prime (145025520137) can be obtained adding 145025520097 to its sum of digits (40).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 116587419601 + 28438100496 = 341449^2 + 168636^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-145025520097 is a prime.

It is not a weakly prime, because it can be changed into another prime (145025520077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72512760048 + 72512760049.

It is an arithmetic number, because the mean of its divisors is an integer number (72512760049).

Almost surely, 2^145025520097 is an apocalyptic number.

It is an amenable number.

145025520097 is a deficient number, since it is larger than the sum of its proper divisors (1).

145025520097 is an equidigital number, since it uses as much as digits as its factorization.

145025520097 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 126000, while the sum is 40.

The spelling of 145025520097 in words is "one hundred forty-five billion, twenty-five million, five hundred twenty thousand, ninety-seven".