1137681108 has 72 divisors (see below), whose sum is σ = 3013920000. Its totient is φ = 361158336.

The previous prime is 1137681091. The next prime is 1137681109. The reversal of 1137681108 is 8011867311.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1137681109) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 195018 + ... + 200766.

It is an arithmetic number, because the mean of its divisors is an integer number (41860000).

Almost surely, 2^1137681108 is an apocalyptic number.

1137681108 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1137681108, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1506960000).

1137681108 is an abundant number, since it is smaller than the sum of its proper divisors (1876238892).

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

1137681108 is a wasteful number, since it uses less digits than its factorization.

1137681108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6021 (or 6016 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 36.

The square root of 1137681108 is about 33729.5287248429. The cubic root of 1137681108 is about 1043.9351371161.

The spelling of 1137681108 in words is "one billion, one hundred thirty-seven million, six hundred eighty-one thousand, one hundred eight".