109554121 has 4 divisors (see below), whose sum is σ = 110390544. Its totient is φ = 108717700.

The previous prime is 109554097. The next prime is 109554131. The reversal of 109554121 is 121455901.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 109554121 - 2⁵ = 109554089 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 109554121.

It is not an unprimeable number, because it can be changed into a prime (109554131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 418015 + ... + 418276.

It is an arithmetic number, because the mean of its divisors is an integer number (27597636).

Almost surely, 2^109554121 is an apocalyptic number.

It is an amenable number.

109554121 is a deficient number, since it is larger than the sum of its proper divisors (836423).

109554121 is an equidigital number, since it uses as much as digits as its factorization.

109554121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 836422.

The product of its (nonzero) digits is 1800, while the sum is 28.

The square root of 109554121 is about 10466.8104501801. The cubic root of 109554121 is about 478.4937170404.

The spelling of 109554121 in words is "one hundred nine million, five hundred fifty-four thousand, one hundred twenty-one".