11257481 has 8 divisors (see below), whose sum is σ = 12259200. Its totient is φ = 10296720.

The previous prime is 11257439. The next prime is 11257501. The reversal of 11257481 is 18475211.

11257481 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 11257481 - 2¹⁰ = 11256457 is a prime.

It is a super-2 number, since 2×11257481² = 253461756930722, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11257781) 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, 9665 + ... + 10766.

It is an arithmetic number, because the mean of its divisors is an integer number (1532400).

Almost surely, 2^11257481 is an apocalyptic number.

It is an amenable number.

11257481 is a deficient number, since it is larger than the sum of its proper divisors (1001719).

11257481 is a wasteful number, since it uses less digits than its factorization.

11257481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20479.

The product of its digits is 2240, while the sum is 29.

The square root of 11257481 is about 3355.2169825512. The cubic root of 11257481 is about 224.1198935655.

The spelling of 11257481 in words is "eleven million, two hundred fifty-seven thousand, four hundred eighty-one".