145828 has 6 divisors (see below), whose sum is σ = 255206. Its totient is φ = 72912.

The previous prime is 145823. The next prime is 145829. The reversal of 145828 is 828541.

It can be written as a sum of positive squares in only one way, i.e., 135424 + 10404 = 368^2 + 102^2 .

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 145796 and 145805.

It is not an unprimeable number, because it can be changed into a prime (145823) by changing a digit.

145828 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18225 + ... + 18232.

2¹⁴⁵⁸²⁸ is an apocalyptic number.

It is an amenable number.

145828 is a deficient number, since it is larger than the sum of its proper divisors (109378).

145828 is a wasteful number, since it uses less digits than its factorization.

145828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36461 (or 36459 counting only the distinct ones).

The product of its digits is 2560, while the sum is 28.

The square root of 145828 is about 381.8743248767. The cubic root of 145828 is about 52.6356883107.

The spelling of 145828 in words is "one hundred forty-five thousand, eight hundred twenty-eight".