11437081 has 4 divisors (see below), whose sum is σ = 11480832. Its totient is φ = 11393332.

The previous prime is 11437061. The next prime is 11437087. The reversal of 11437081 is 18073411.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 18073411 = 59 ⋅306329.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11437081 is a prime.

It is a super-2 number, since 2×11437081² = 261613643601122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11437087) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21481 + ... + 22006.

It is an arithmetic number, because the mean of its divisors is an integer number (2870208).

Almost surely, 2^11437081 is an apocalyptic number.

It is an amenable number.

11437081 is a deficient number, since it is larger than the sum of its proper divisors (43751).

11437081 is an equidigital number, since it uses as much as digits as its factorization.

11437081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43750.

The product of its (nonzero) digits is 672, while the sum is 25.

The square root of 11437081 is about 3381.8753673073. The cubic root of 11437081 is about 225.3054682251.

The spelling of 11437081 in words is "eleven million, four hundred thirty-seven thousand, eighty-one".