108121040 has 40 divisors (see below), whose sum is σ = 255653280. Its totient is φ = 42513536.

The previous prime is 108121031. The next prime is 108121043. The reversal of 108121040 is 40121801.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108121043) 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, 6734 + ... + 16173.

It is an arithmetic number, because the mean of its divisors is an integer number (6391332).

Almost surely, 2^108121040 is an apocalyptic number.

108121040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

108121040 is an abundant number, since it is smaller than the sum of its proper divisors (147532240).

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

108121040 is a wasteful number, since it uses less digits than its factorization.

108121040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22979 (or 22973 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

The square root of 108121040 is about 10398.1267543726. The cubic root of 108121040 is about 476.3981556725.

Adding to 108121040 its reverse (40121801), we get a palindrome (148242841).

The spelling of 108121040 in words is "one hundred eight million, one hundred twenty-one thousand, forty".