20061369 has 6 divisors (see below), whose sum is σ = 28977546. Its totient is φ = 13374240.

The previous prime is 20061367. The next prime is 20061403. The reversal of 20061369 is 96316002.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 10989225 + 9072144 = 3315^2 + 3012^2 .

It is not a de Polignac number, because 20061369 - 2¹ = 20061367 is a prime.

It is a super-2 number, since 2×20061369² = 804917052308322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20061367) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1114512 + ... + 1114529.

It is an arithmetic number, because the mean of its divisors is an integer number (4829591).

Almost surely, 2^20061369 is an apocalyptic number.

It is an amenable number.

20061369 is a deficient number, since it is larger than the sum of its proper divisors (8916177).

20061369 is a wasteful number, since it uses less digits than its factorization.

20061369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2229047 (or 2229044 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The square root of 20061369 is about 4478.9919624844. The cubic root of 20061369 is about 271.7191133306.

It can be divided in two parts, 2006 and 1369, that added together give a cube (3375 = 15³).

The spelling of 20061369 in words is "twenty million, sixty-one thousand, three hundred sixty-nine".