103440455 has 8 divisors (see below), whose sum is σ = 125268000. Its totient is φ = 81992736.

The previous prime is 103440451. The next prime is 103440457. The reversal of 103440455 is 554044301.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 103440455 - 2² = 103440451 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103440451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94355 + ... + 95444.

It is an arithmetic number, because the mean of its divisors is an integer number (15658500).

Almost surely, 2^103440455 is an apocalyptic number.

103440455 is a deficient number, since it is larger than the sum of its proper divisors (21827545).

103440455 is a wasteful number, since it uses less digits than its factorization.

103440455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189913.

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 103440455 is about 10170.5680765629. The cubic root of 103440455 is about 469.4220374160.

Adding to 103440455 its reverse (554044301), we get a palindrome (657484756).

The spelling of 103440455 in words is "one hundred three million, four hundred forty thousand, four hundred fifty-five".