20134493 has 8 divisors (see below), whose sum is σ = 20484480. Its totient is φ = 19787040.

The previous prime is 20134489. The next prime is 20134529. The reversal of 20134493 is 39443102.

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 20134493 - 2² = 20134489 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20134423) 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, 21746 + ... + 22652.

It is an arithmetic number, because the mean of its divisors is an integer number (2560560).

Almost surely, 2^20134493 is an apocalyptic number.

It is an amenable number.

20134493 is a deficient number, since it is larger than the sum of its proper divisors (349987).

20134493 is an equidigital number, since it uses as much as digits as its factorization.

20134493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1267.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 20134493 is about 4487.1475349046. The cubic root of 20134493 is about 272.0488531412.

Adding to 20134493 its reverse (39443102), we get a palindrome (59577595).

It can be divided in two parts, 2013 and 4493, that multiplied together give a palindrome (9044409).

The spelling of 20134493 in words is "twenty million, one hundred thirty-four thousand, four hundred ninety-three".