109154321 has 2 divisors, whose sum is σ = 109154322. Its totient is φ = 109154320.

The previous prime is 109154303. The next prime is 109154327. The reversal of 109154321 is 123451901.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 79299025 + 29855296 = 8905^2 + 5464^2 .

It is a cyclic number.

It is not a de Polignac number, because 109154321 - 2¹⁸ = 108892177 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (109154327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54577160 + 54577161.

It is an arithmetic number, because the mean of its divisors is an integer number (54577161).

Almost surely, 2^109154321 is an apocalyptic number.

It is an amenable number.

109154321 is a deficient number, since it is larger than the sum of its proper divisors (1).

109154321 is an equidigital number, since it uses as much as digits as its factorization.

109154321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 109154321 is about 10447.6945303737. The cubic root of 109154321 is about 477.9109458112.

The spelling of 109154321 in words is "one hundred nine million, one hundred fifty-four thousand, three hundred twenty-one".