145394 has 8 divisors (see below), whose sum is σ = 220080. Its totient is φ = 72036.

The previous prime is 145391. The next prime is 145399. The reversal of 145394 is 493541.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×145394² = 42278830472, which contains 22 as substring.

It is a d-powerful number, because it can be written as 1 + 4⁶ + 3³ + 5⁷ + 9⁵ + 4⁶ .

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 145394.

It is not an unprimeable number, because it can be changed into a prime (145391) 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 3 ways as a sum of consecutive naturals, for example, 17 + ... + 539.

It is an arithmetic number, because the mean of its divisors is an integer number (27510).

2¹⁴⁵³⁹⁴ is an apocalyptic number.

145394 is a deficient number, since it is larger than the sum of its proper divisors (74686).

145394 is a wasteful number, since it uses less digits than its factorization.

145394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 664.

The product of its digits is 2160, while the sum is 26.

The square root of 145394 is about 381.3056516759. The cubic root of 145394 is about 52.5834199118.

The spelling of 145394 in words is "one hundred forty-five thousand, three hundred ninety-four".