20514031 has 8 divisors (see below), whose sum is σ = 20845440. Its totient is φ = 20184792.

The previous prime is 20514023. The next prime is 20514041. The reversal of 20514031 is 13041502.

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 20514031 - 2³ = 20514023 is a prime.

It is a super-2 number, since 2×20514031² = 841650935737922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20513996 and 20514014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20514041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36156 + ... + 36718.

It is an arithmetic number, because the mean of its divisors is an integer number (2605680).

Almost surely, 2^20514031 is an apocalyptic number.

20514031 is a deficient number, since it is larger than the sum of its proper divisors (331409).

20514031 is an equidigital number, since it uses as much as digits as its factorization.

20514031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1085.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 20514031 is about 4529.2417687732. The cubic root of 20514031 is about 273.7476097732.

Adding to 20514031 its reverse (13041502), we get a palindrome (33555533).

The spelling of 20514031 in words is "twenty million, five hundred fourteen thousand, thirty-one".