20966134 has 16 divisors (see below), whose sum is σ = 38056608. Its totient is φ = 8456832.

The previous prime is 20966131. The next prime is 20966147. The reversal of 20966134 is 43166902.

It is a junction number, because it is equal to n+sod(n) for n = 20966096 and 20966105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20966131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43809 + ... + 44284.

It is an arithmetic number, because the mean of its divisors is an integer number (2378538).

Almost surely, 2^20966134 is an apocalyptic number.

20966134 is a deficient number, since it is larger than the sum of its proper divisors (17090474).

20966134 is a wasteful number, since it uses less digits than its factorization.

20966134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88119.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 20966134 is about 4578.8791204835. The cubic root of 20966134 is about 275.7440303413.

The spelling of 20966134 in words is "twenty million, nine hundred sixty-six thousand, one hundred thirty-four".