109140557 has 2 divisors, whose sum is σ = 109140558. Its totient is φ = 109140556.

The previous prime is 109140547. The next prime is 109140569. The reversal of 109140557 is 755041901.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 104734756 + 4405801 = 10234^2 + 2099^2 .

It is an emirp because it is prime and its reverse (755041901) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 109140557 - 2⁸ = 109140301 is a prime.

It is a super-2 number, since 2×109140557² = 23823322364540498, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (109140517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54570278 + 54570279.

It is an arithmetic number, because the mean of its divisors is an integer number (54570279).

Almost surely, 2^109140557 is an apocalyptic number.

It is an amenable number.

109140557 is a deficient number, since it is larger than the sum of its proper divisors (1).

109140557 is an equidigital number, since it uses as much as digits as its factorization.

109140557 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6300, while the sum is 32.

The square root of 109140557 is about 10447.0357996898. The cubic root of 109140557 is about 477.8908573019.

The spelling of 109140557 in words is "one hundred nine million, one hundred forty thousand, five hundred fifty-seven".