11478501 has 12 divisors (see below), whose sum is σ = 16631628. Its totient is φ = 7628544.

The previous prime is 11478487. The next prime is 11478503. The reversal of 11478501 is 10587411.

It can be written as a sum of positive squares in 2 ways, for example, as 1404225 + 10074276 = 1185^2 + 3174^2 .

It is not a de Polignac number, because 11478501 - 2¹⁸ = 11216357 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11478503) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1371 + ... + 4983.

It is an arithmetic number, because the mean of its divisors is an integer number (1385969).

Almost surely, 2^11478501 is an apocalyptic number.

It is an amenable number.

11478501 is a deficient number, since it is larger than the sum of its proper divisors (5153127).

11478501 is a wasteful number, since it uses less digits than its factorization.

11478501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3972 (or 3969 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 27.

The square root of 11478501 is about 3387.9936540673. The cubic root of 11478501 is about 225.5771258119.

The spelling of 11478501 in words is "eleven million, four hundred seventy-eight thousand, five hundred one".