11541397 has 4 divisors (see below), whose sum is σ = 13190176. Its totient is φ = 9892620.

The previous prime is 11541389. The next prime is 11541401. The reversal of 11541397 is 79314511.

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.

It is a cyclic number.

It is not a de Polignac number, because 11541397 - 2³ = 11541389 is a prime.

It is a super-3 number, since 3×11541397³ (a number of 22 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11541337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 824379 + ... + 824392.

It is an arithmetic number, because the mean of its divisors is an integer number (3297544).

Almost surely, 2^11541397 is an apocalyptic number.

It is an amenable number.

11541397 is a deficient number, since it is larger than the sum of its proper divisors (1648779).

11541397 is an equidigital number, since it uses as much as digits as its factorization.

11541397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1648778.

The product of its digits is 3780, while the sum is 31.

The square root of 11541397 is about 3397.2631631948. The cubic root of 11541397 is about 225.9883892539.

The spelling of 11541397 in words is "eleven million, five hundred forty-one thousand, three hundred ninety-seven".