109549403 has 2 divisors, whose sum is σ = 109549404. Its totient is φ = 109549402.

The previous prime is 109549399. The next prime is 109549457. The reversal of 109549403 is 304945901.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 109549403 - 2² = 109549399 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (109549493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54774701 + 54774702.

It is an arithmetic number, because the mean of its divisors is an integer number (54774702).

Almost surely, 2^109549403 is an apocalyptic number.

109549403 is a deficient number, since it is larger than the sum of its proper divisors (1).

109549403 is an equidigital number, since it uses as much as digits as its factorization.

109549403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 109549403 is about 10466.5850686841. The cubic root of 109549403 is about 478.4868480891.

The spelling of 109549403 in words is "one hundred nine million, five hundred forty-nine thousand, four hundred three".