20883137 has 4 divisors (see below), whose sum is σ = 22781616. Its totient is φ = 18984660.

The previous prime is 20883073. The next prime is 20883143. The reversal of 20883137 is 73138802.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20883137 - 2⁶ = 20883073 is a prime.

It is a super-2 number, since 2×20883137² = 872210821921538, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20883437) 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 3 ways as a sum of consecutive naturals, for example, 949223 + ... + 949244.

It is an arithmetic number, because the mean of its divisors is an integer number (5695404).

Almost surely, 2^20883137 is an apocalyptic number.

It is an amenable number.

20883137 is a deficient number, since it is larger than the sum of its proper divisors (1898479).

20883137 is a wasteful number, since it uses less digits than its factorization.

20883137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1898478.

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 20883137 is about 4569.8071075265. The cubic root of 20883137 is about 275.3796936958.

It can be divided in two parts, 2088 and 3137, that added together give a palindrome (5225).

The spelling of 20883137 in words is "twenty million, eight hundred eighty-three thousand, one hundred thirty-seven".