145386 has 24 divisors (see below), whose sum is σ = 324324. Its totient is φ = 47040.

The previous prime is 145381. The next prime is 145391. The reversal of 145386 is 683541.

It is an interprime number because it is at equal distance from previous prime (145381) and next prime (145391).

It can be written as a sum of positive squares in 2 ways, for example, as 145161 + 225 = 381^2 + 15^2 .

It is a super-2 number, since 2×145386² = 42274177992, which contains 22 as substring.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 640 + ... + 836.

2¹⁴⁵³⁸⁶ is an apocalyptic number.

145386 is an abundant number, since it is smaller than the sum of its proper divisors (178938).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

145386 is a wasteful number, since it uses less digits than its factorization.

145386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246 (or 243 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 145386 is about 381.2951612596. The cubic root of 145386 is about 52.5824554633.

The spelling of 145386 in words is "one hundred forty-five thousand, three hundred eighty-six".