11801481 has 8 divisors (see below), whose sum is σ = 16119264. Its totient is φ = 7675680.

The previous prime is 11801477. The next prime is 11801497. The reversal of 11801481 is 18410811.

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

It is not a de Polignac number, because 11801481 - 2² = 11801477 is a prime.

It is a super-2 number, since 2×11801481² = 278549907586722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11801401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47851 + ... + 48096.

It is an arithmetic number, because the mean of its divisors is an integer number (2014908).

Almost surely, 2^11801481 is an apocalyptic number.

It is an amenable number.

11801481 is a deficient number, since it is larger than the sum of its proper divisors (4317783).

11801481 is an equidigital number, since it uses as much as digits as its factorization.

11801481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95991.

The product of its (nonzero) digits is 256, while the sum is 24.

The square root of 11801481 is about 3435.3283685843. The cubic root of 11801481 is about 227.6733356770.

The spelling of 11801481 in words is "eleven million, eight hundred one thousand, four hundred eighty-one".