103405449 has 16 divisors (see below), whose sum is σ = 159731072. Its totient is φ = 58278528.

The previous prime is 103405409. The next prime is 103405453. The reversal of 103405449 is 944504301.

It is not a de Polignac number, because 103405449 - 2⁸ = 103405193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (103405409) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32194 + ... + 35259.

It is an arithmetic number, because the mean of its divisors is an integer number (9983192).

Almost surely, 2^103405449 is an apocalyptic number.

It is an amenable number.

103405449 is a deficient number, since it is larger than the sum of its proper divisors (56325623).

103405449 is an equidigital number, since it uses as much as digits as its factorization.

103405449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67536.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 103405449 is about 10168.8469847864. The cubic root of 103405449 is about 469.3690779884.

The spelling of 103405449 in words is "one hundred three million, four hundred five thousand, four hundred forty-nine".