145117795597 has 2 divisors, whose sum is σ = 145117795598. Its totient is φ = 145117795596.

The previous prime is 145117795583. The next prime is 145117795609. The reversal of 145117795597 is 795597711541.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 72676611396 + 72441184201 = 269586^2 + 269149^2 .

It is a cyclic number.

It is not a de Polignac number, because 145117795597 - 2³¹ = 142970311949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145117795517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72558897798 + 72558897799.

It is an arithmetic number, because the mean of its divisors is an integer number (72558897799).

Almost surely, 2^145117795597 is an apocalyptic number.

It is an amenable number.

145117795597 is a deficient number, since it is larger than the sum of its proper divisors (1).

145117795597 is an equidigital number, since it uses as much as digits as its factorization.

145117795597 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13891500, while the sum is 61.

The spelling of 145117795597 in words is "one hundred forty-five billion, one hundred seventeen million, seven hundred ninety-five thousand, five hundred ninety-seven".