11137880 has 32 divisors (see below), whose sum is σ = 26989200. Its totient is φ = 4112256.

The previous prime is 11137877. The next prime is 11137883. The reversal of 11137880 is 8873111.

It is an interprime number because it is at equal distance from previous prime (11137877) and next prime (11137883).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11137883) 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 7 ways as a sum of consecutive naturals, for example, 10190 + ... + 11229.

Almost surely, 2^11137880 is an apocalyptic number.

11137880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11137880 is an abundant number, since it is smaller than the sum of its proper divisors (15851320).

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

11137880 is a wasteful number, since it uses less digits than its factorization.

11137880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21443 (or 21439 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 29.

The square root of 11137880 is about 3337.3462511403. The cubic root of 11137880 is about 223.3233727396.

The spelling of 11137880 in words is "eleven million, one hundred thirty-seven thousand, eight hundred eighty".