20151092 has 24 divisors (see below), whose sum is σ = 38204712. Its totient is φ = 9244800.

The previous prime is 20151091. The next prime is 20151097. The reversal of 20151092 is 29015102.

It can be written as a sum of positive squares in 4 ways, for example, as 401956 + 19749136 = 634^2 + 4444^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20151091) 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, 8342 + ... + 10482.

It is an arithmetic number, because the mean of its divisors is an integer number (1591863).

Almost surely, 2^20151092 is an apocalyptic number.

It is an amenable number.

20151092 is a deficient number, since it is larger than the sum of its proper divisors (18053620).

20151092 is a wasteful number, since it uses less digits than its factorization.

20151092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2339 (or 2337 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 20.

The square root of 20151092 is about 4488.9967698808. The cubic root of 20151092 is about 272.1235921897.

Adding to 20151092 its reverse (29015102), we get a palindrome (49166194).

The spelling of 20151092 in words is "twenty million, one hundred fifty-one thousand, ninety-two".