11515485 has 16 divisors (see below), whose sum is σ = 18539136. Its totient is φ = 6103488.

The previous prime is 11515481. The next prime is 11515489. The reversal of 11515485 is 58451511.

It is an interprime number because it is at equal distance from previous prime (11515481) and next prime (11515489).

It is not a de Polignac number, because 11515485 - 2² = 11515481 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11515481) 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, 207 + ... + 4803.

It is an arithmetic number, because the mean of its divisors is an integer number (1158696).

Almost surely, 2^11515485 is an apocalyptic number.

11515485 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11515485 is a deficient number, since it is larger than the sum of its proper divisors (7023651).

11515485 is a wasteful number, since it uses less digits than its factorization.

11515485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4772.

The product of its digits is 4000, while the sum is 30.

The square root of 11515485 is about 3393.4473621967. The cubic root of 11515485 is about 225.8191376755.

Adding to 11515485 its reverse (58451511), we get a palindrome (69966996).

The spelling of 11515485 in words is "eleven million, five hundred fifteen thousand, four hundred eighty-five".