145613 has 8 divisors (see below), whose sum is σ = 163968. Its totient is φ = 128304.

The previous prime is 145603. The next prime is 145633. The reversal of 145613 is 316541.

145613 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 145613 - 2⁶ = 145549 is a prime.

It is an Ulam number.

It is a Duffinian 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 (145603) 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, 56 + ... + 542.

It is an arithmetic number, because the mean of its divisors is an integer number (20496).

2¹⁴⁵⁶¹³ is an apocalyptic number.

145613 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

145613 is a deficient number, since it is larger than the sum of its proper divisors (18355).

145613 is a wasteful number, since it uses less digits than its factorization.

145613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 523.

The product of its digits is 360, while the sum is 20.

The square root of 145613 is about 381.5927148152. The cubic root of 145613 is about 52.6098079606.

The spelling of 145613 in words is "one hundred forty-five thousand, six hundred thirteen".