103440133 has 4 divisors (see below), whose sum is σ = 103565740. Its totient is φ = 103314528.

The previous prime is 103440101. The next prime is 103440137. The reversal of 103440133 is 331044301.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 331044301 = 7 ⋅47292043.

It can be written as a sum of positive squares in 2 ways, for example, as 63712324 + 39727809 = 7982^2 + 6303^2 .

It is a cyclic number.

It is not a de Polignac number, because 103440133 - 2⁵ = 103440101 is a prime.

It is a super-2 number, since 2×103440133² = 21399722230115378, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 103440133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103440137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61560 + ... + 63217.

It is an arithmetic number, because the mean of its divisors is an integer number (25891435).

Almost surely, 2^103440133 is an apocalyptic number.

It is an amenable number.

103440133 is a deficient number, since it is larger than the sum of its proper divisors (125607).

103440133 is an equidigital number, since it uses as much as digits as its factorization.

103440133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125606.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 103440133 is about 10170.5522465597. The cubic root of 103440133 is about 469.4215503273.

Adding to 103440133 its reverse (331044301), we get a palindrome (434484434).

The spelling of 103440133 in words is "one hundred three million, four hundred forty thousand, one hundred thirty-three".