145097 has 4 divisors (see below), whose sum is σ = 145860. Its totient is φ = 144336.

The previous prime is 145091. The next prime is 145109. The reversal of 145097 is 790541.

145097 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 790541 = 59 ⋅13399.

It can be written as a sum of positive squares in 2 ways, for example, as 55696 + 89401 = 236^2 + 299^2 .

It is a cyclic number.

It is not a de Polignac number, because 145097 - 2¹⁰ = 144073 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 8.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 145097.

It is not an unprimeable number, because it can be changed into a prime (145091) 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, 179 + ... + 567.

It is an arithmetic number, because the mean of its divisors is an integer number (36465).

2¹⁴⁵⁰⁹⁷ is an apocalyptic number.

It is an amenable number.

145097 is a deficient number, since it is larger than the sum of its proper divisors (763).

145097 is an equidigital number, since it uses as much as digits as its factorization.

145097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 762.

The product of its (nonzero) digits is 1260, while the sum is 26.

The square root of 145097 is about 380.9160012391. The cubic root of 145097 is about 52.5475910107.

The spelling of 145097 in words is "one hundred forty-five thousand, ninety-seven".