145297 has 8 divisors (see below), whose sum is σ = 154880. Its totient is φ = 136080.

The previous prime is 145289. The next prime is 145303. The reversal of 145297 is 792541.

It is a happy number.

145297 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 145297 - 2³ = 145289 is a prime.

It is a super-2 number, since 2×145297² = 42222436418, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145207) 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, 1279 + ... + 1387.

It is an arithmetic number, because the mean of its divisors is an integer number (19360).

2¹⁴⁵²⁹⁷ is an apocalyptic number.

It is an amenable number.

145297 is a deficient number, since it is larger than the sum of its proper divisors (9583).

145297 is a wasteful number, since it uses less digits than its factorization.

145297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183.

The product of its digits is 2520, while the sum is 28.

The square root of 145297 is about 381.1784359063. The cubic root of 145297 is about 52.5717235868.

The spelling of 145297 in words is "one hundred forty-five thousand, two hundred ninety-seven".