11403265 has 8 divisors (see below), whose sum is σ = 13702248. Its totient is φ = 9110400.

The previous prime is 11403247. The next prime is 11403283. The reversal of 11403265 is 56230411.

It is an interprime number because it is at equal distance from previous prime (11403247) and next prime (11403283).

It can be written as a sum of positive squares in 4 ways, for example, as 1411344 + 9991921 = 1188^2 + 3161^2 .

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

It is not a de Polignac number, because 11403265 - 2⁷ = 11403137 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5629 + ... + 7381.

It is an arithmetic number, because the mean of its divisors is an integer number (1712781).

It is a Proth number, since it is equal to 87 ⋅ 2¹⁷ + 1 and 87 < 2¹⁷.

Almost surely, 2^11403265 is an apocalyptic number.

It is an amenable number.

11403265 is a deficient number, since it is larger than the sum of its proper divisors (2298983).

11403265 is a wasteful number, since it uses less digits than its factorization.

11403265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3059.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 11403265 is about 3376.8720733839. The cubic root of 11403265 is about 225.0831955714.

Adding to 11403265 its reverse (56230411), we get a palindrome (67633676).

The spelling of 11403265 in words is "eleven million, four hundred three thousand, two hundred sixty-five".