20276165 has 16 divisors (see below), whose sum is σ = 29947008. Its totient is φ = 12833856.

The previous prime is 20276141. The next prime is 20276167. The reversal of 20276165 is 56167202.

It is not a de Polignac number, because 20276165 - 2⁸ = 20275909 is a prime.

It is a super-2 number, since 2×20276165² = 822245734214450, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20276167) 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, 21827 + ... + 22736.

It is an arithmetic number, because the mean of its divisors is an integer number (1871688).

Almost surely, 2^20276165 is an apocalyptic number.

It is an amenable number.

20276165 is a deficient number, since it is larger than the sum of its proper divisors (9670843).

20276165 is a wasteful number, since it uses less digits than its factorization.

20276165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44588.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 20276165 is about 4502.9062837239. The cubic root of 20276165 is about 272.6854333629.

It can be divided in two parts, 2027 and 6165, that added together give a 13-th power (8192 = 2¹³).

The spelling of 20276165 in words is "twenty million, two hundred seventy-six thousand, one hundred sixty-five".