20131354 has 4 divisors (see below), whose sum is σ = 30197034. Its totient is φ = 10065676.

The previous prime is 20131339. The next prime is 20131373. The reversal of 20131354 is 45313102.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 45313102 = 2 ⋅22656551.

It can be written as a sum of positive squares in only one way, i.e., 20115225 + 16129 = 4485^2 + 127^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5032837 + ... + 5032840.

Almost surely, 2^20131354 is an apocalyptic number.

20131354 is a deficient number, since it is larger than the sum of its proper divisors (10065680).

20131354 is a wasteful number, since it uses less digits than its factorization.

20131354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10065679.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 20131354 is about 4486.7977444944. The cubic root of 20131354 is about 272.0347147878.

Adding to 20131354 its reverse (45313102), we get a palindrome (65444456).

The spelling of 20131354 in words is "twenty million, one hundred thirty-one thousand, three hundred fifty-four".