145597 has 8 divisors (see below), whose sum is σ = 156800. Its totient is φ = 134784.

The previous prime is 145589. The next prime is 145601. The reversal of 145597 is 795541.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 145597 - 2³ = 145589 is a prime.

It is a Duffinian number.

145597 is a lucky number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145517) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1453 + ... + 1549.

It is an arithmetic number, because the mean of its divisors is an integer number (19600).

2¹⁴⁵⁵⁹⁷ is an apocalyptic number.

It is an amenable number.

145597 is a deficient number, since it is larger than the sum of its proper divisors (11203).

145597 is an equidigital number, since it uses as much as digits as its factorization.

145597 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195.

The product of its digits is 6300, while the sum is 31.

The square root of 145597 is about 381.5717494784. The cubic root of 145597 is about 52.6078809629.

The spelling of 145597 in words is "one hundred forty-five thousand, five hundred ninety-seven".