13151840 has 48 divisors (see below), whose sum is σ = 33466608. Its totient is φ = 4855296.

The previous prime is 13151839. The next prime is 13151849. The reversal of 13151840 is 4815131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13151849) 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, 1082 + ... + 5241.

It is an arithmetic number, because the mean of its divisors is an integer number (697221).

Almost surely, 2^13151840 is an apocalyptic number.

13151840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13151840 is an abundant number, since it is smaller than the sum of its proper divisors (20314768).

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

13151840 is a wasteful number, since it uses less digits than its factorization.

13151840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6351 (or 6343 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 23.

The square root of 13151840 is about 3626.5465666388. The cubic root of 13151840 is about 236.0453805292.

Adding to 13151840 its reverse (4815131), we get a palindrome (17966971).

The spelling of 13151840 in words is "thirteen million, one hundred fifty-one thousand, eight hundred forty".