11481951 has 32 divisors (see below), whose sum is σ = 17321920. Its totient is φ = 6718464.

The previous prime is 11481929. The next prime is 11481961. The reversal of 11481951 is 15918411.

It is a happy number.

It is not a de Polignac number, because 11481951 - 2²² = 7287647 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11481901) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 105285 + ... + 105393.

It is an arithmetic number, because the mean of its divisors is an integer number (541310).

Almost surely, 2^11481951 is an apocalyptic number.

11481951 is a deficient number, since it is larger than the sum of its proper divisors (5839969).

11481951 is a wasteful number, since it uses less digits than its factorization.

11481951 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235.

The product of its digits is 1440, while the sum is 30.

The square root of 11481951 is about 3388.5027667098. The cubic root of 11481951 is about 225.5997235108.

The spelling of 11481951 in words is "eleven million, four hundred eighty-one thousand, nine hundred fifty-one".