20151260 has 24 divisors (see below), whose sum is σ = 42453600. Its totient is φ = 8034624.

The previous prime is 20151251. The next prime is 20151277. The reversal of 20151260 is 6215102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5537 + ... + 8423.

It is an arithmetic number, because the mean of its divisors is an integer number (1768900).

Almost surely, 2^20151260 is an apocalyptic number.

20151260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20151260 is an abundant number, since it is smaller than the sum of its proper divisors (22302340).

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

20151260 is a wasteful number, since it uses less digits than its factorization.

20151260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3245 (or 3243 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 20151260 is about 4489.0154822633. The cubic root of 20151260 is about 272.1243484206.

Adding to 20151260 its reverse (6215102), we get a palindrome (26366362).

The spelling of 20151260 in words is "twenty million, one hundred fifty-one thousand, two hundred sixty".