145286 has 4 divisors (see below), whose sum is σ = 217932. Its totient is φ = 72642.

The previous prime is 145283. The next prime is 145289. The reversal of 145286 is 682541.

145286 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 an emirpimes, since its reverse is a distinct semiprime: 682541 = 89 ⋅7669.

It is an interprime number because it is at equal distance from previous prime (145283) and next prime (145289).

It is a super-2 number, since 2×145286² = 42216043592, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36320 + ... + 36323.

It is an arithmetic number, because the mean of its divisors is an integer number (54483).

2¹⁴⁵²⁸⁶ is an apocalyptic number.

145286 is a deficient number, since it is larger than the sum of its proper divisors (72646).

145286 is an equidigital number, since it uses as much as digits as its factorization.

145286 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72645.

The product of its digits is 1920, while the sum is 26.

The square root of 145286 is about 381.1640066953. The cubic root of 145286 is about 52.5703968708.

The spelling of 145286 in words is "one hundred forty-five thousand, two hundred eighty-six".