145894 has 16 divisors (see below), whose sum is σ = 265248. Its totient is φ = 58752.

The previous prime is 145879. The next prime is 145897. The reversal of 145894 is 498541.

It is a happy number.

It is an Ulam number.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145897) 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, 69 + ... + 544.

It is an arithmetic number, because the mean of its divisors is an integer number (16578).

2¹⁴⁵⁸⁹⁴ is an apocalyptic number.

145894 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

145894 is a deficient number, since it is larger than the sum of its proper divisors (119354).

145894 is a wasteful number, since it uses less digits than its factorization.

145894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 639.

The product of its digits is 5760, while the sum is 31.

The square root of 145894 is about 381.9607309659. The cubic root of 145894 is about 52.6436278730.

The spelling of 145894 in words is "one hundred forty-five thousand, eight hundred ninety-four".