109004557 has 2 divisors, whose sum is σ = 109004558. Its totient is φ = 109004556.

The previous prime is 109004551. The next prime is 109004563. The reversal of 109004557 is 755400901.

It is a balanced prime because it is at equal distance from previous prime (109004551) and next prime (109004563).

It can be written as a sum of positive squares in only one way, i.e., 105390756 + 3613801 = 10266^2 + 1901^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-109004557 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (109004551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54502278 + 54502279.

It is an arithmetic number, because the mean of its divisors is an integer number (54502279).

Almost surely, 2^109004557 is an apocalyptic number.

It is an amenable number.

109004557 is a deficient number, since it is larger than the sum of its proper divisors (1).

109004557 is an equidigital number, since it uses as much as digits as its factorization.

109004557 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 31.

The square root of 109004557 is about 10440.5247473487. The cubic root of 109004557 is about 477.6922749323.

It can be divided in two parts, 109004 and 557, that added together give a square (109561 = 331²).

The spelling of 109004557 in words is "one hundred nine million, four thousand, five hundred fifty-seven".