20151060 has 48 divisors (see below), whose sum is σ = 56681856. Its totient is φ = 5348992.

The previous prime is 20151041. The next prime is 20151067. The reversal of 20151060 is 6015102.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20151067) 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, 15142 + ... + 16418.

It is an arithmetic number, because the mean of its divisors is an integer number (1180872).

Almost surely, 2^20151060 is an apocalyptic number.

20151060 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20151060 is an abundant number, since it is smaller than the sum of its proper divisors (36530796).

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

20151060 is a wasteful number, since it uses less digits than its factorization.

20151060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1552 (or 1550 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 20151060 is about 4488.9932056086. The cubic root of 20151060 is about 272.1234481452.

Adding to 20151060 its reverse (6015102), we get a palindrome (26166162).

The spelling of 20151060 in words is "twenty million, one hundred fifty-one thousand, sixty".