20713134 has 32 divisors (see below), whose sum is σ = 46156320. Its totient is φ = 6152832.

The previous prime is 20713129. The next prime is 20713139. The reversal of 20713134 is 43131702.

It is an interprime number because it is at equal distance from previous prime (20713129) and next prime (20713139).

It is a self number, because there is not a number n which added to its sum of digits gives 20713134.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20713139) 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 15 ways as a sum of consecutive naturals, for example, 2317 + ... + 6840.

It is an arithmetic number, because the mean of its divisors is an integer number (1442385).

Almost surely, 2^20713134 is an apocalyptic number.

20713134 is an abundant number, since it is smaller than the sum of its proper divisors (25443186).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20713134 is a wasteful number, since it uses less digits than its factorization.

20713134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9204.

The product of its (nonzero) digits is 504, while the sum is 21.

The square root of 20713134 is about 4551.1684214057. The cubic root of 20713134 is about 274.6303971364.

Adding to 20713134 its reverse (43131702), we get a palindrome (63844836).

The spelling of 20713134 in words is "twenty million, seven hundred thirteen thousand, one hundred thirty-four".