145496755317 has 4 divisors (see below), whose sum is σ = 193995673760. Its totient is φ = 96997836876.

The previous prime is 145496755279. The next prime is 145496755331. The reversal of 145496755317 is 713557694541.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 713557694541 = 3 ⋅237852564847.

It is not a de Polignac number, because 145496755317 - 2⁷ = 145496755189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145496755357) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24249459217 + ... + 24249459222.

It is an arithmetic number, because the mean of its divisors is an integer number (48498918440).

Almost surely, 2^145496755317 is an apocalyptic number.

It is an amenable number.

145496755317 is a deficient number, since it is larger than the sum of its proper divisors (48498918443).

145496755317 is an equidigital number, since it uses as much as digits as its factorization.

145496755317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48498918442.

The product of its digits is 15876000, while the sum is 57.

The spelling of 145496755317 in words is "one hundred forty-five billion, four hundred ninety-six million, seven hundred fifty-five thousand, three hundred seventeen".