11481015 has 48 divisors (see below), whose sum is σ = 22768128. Its totient is φ = 4837248.

The previous prime is 11481007. The next prime is 11481023. The reversal of 11481015 is 51018411.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (11481007) and next prime (11481023).

It is not a de Polignac number, because 11481015 - 2³ = 11481007 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 11480982 and 11481000.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 17422 + ... + 18068.

It is an arithmetic number, because the mean of its divisors is an integer number (474336).

Almost surely, 2^11481015 is an apocalyptic number.

11481015 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11481015 is a deficient number, since it is larger than the sum of its proper divisors (11287113).

11481015 is a wasteful number, since it uses less digits than its factorization.

11481015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 688 (or 675 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 21.

The square root of 11481015 is about 3388.3646497979. The cubic root of 11481015 is about 225.5935931044.

Adding to 11481015 its reverse (51018411), we get a palindrome (62499426).

The spelling of 11481015 in words is "eleven million, four hundred eighty-one thousand, fifteen".