20317354 has 4 divisors (see below), whose sum is σ = 30476034. Its totient is φ = 10158676.

The previous prime is 20317351. The next prime is 20317357. The reversal of 20317354 is 45371302.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 45371302 = 2 ⋅22685651.

It is an interprime number because it is at equal distance from previous prime (20317351) and next prime (20317357).

It can be written as a sum of positive squares in only one way, i.e., 16216729 + 4100625 = 4027^2 + 2025^2 .

It is a super-2 number, since 2×20317354² = 825589747122632, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20317351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5079337 + ... + 5079340.

Almost surely, 2^20317354 is an apocalyptic number.

20317354 is a deficient number, since it is larger than the sum of its proper divisors (10158680).

20317354 is a wasteful number, since it uses less digits than its factorization.

20317354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10158679.

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 20317354 is about 4507.4775651133. The cubic root of 20317354 is about 272.8699528643.

Adding to 20317354 its reverse (45371302), we get a palindrome (65688656).

The spelling of 20317354 in words is "twenty million, three hundred seventeen thousand, three hundred fifty-four".