101493 has 20 divisors (see below), whose sum is σ = 174240. Its totient is φ = 57672.

The previous prime is 101489. The next prime is 101501. The reversal of 101493 is 394101.

It is not a de Polignac number, because 101493 - 2² = 101489 is a prime.

It is a Curzon number.

101493 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101483) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 478 + ... + 656.

It is an arithmetic number, because the mean of its divisors is an integer number (8712).

2¹⁰¹⁴⁹³ is an apocalyptic number.

It is an amenable number.

101493 is a deficient number, since it is larger than the sum of its proper divisors (72747).

101493 is an equidigital number, since it uses as much as digits as its factorization.

101493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198 (or 189 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

The square root of 101493 is about 318.5796603677. The cubic root of 101493 is about 46.6457445897.

Subtracting from 101493 its sum of digits (18), we obtain a triangular number (101475 = T₄₅₀).

Adding to 101493 its reverse (394101), we get a palindrome (495594).

The spelling of 101493 in words is "one hundred one thousand, four hundred ninety-three".