11399137 has 4 divisors (see below), whose sum is σ = 11536560. Its totient is φ = 11261716.

The previous prime is 11399123. The next prime is 11399153. The reversal of 11399137 is 73199311.

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: 73199311 = 293 ⋅249827.

It is a cyclic number.

It is not a de Polignac number, because 11399137 - 2²³ = 3010529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11399837) 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, 68587 + ... + 68752.

It is an arithmetic number, because the mean of its divisors is an integer number (2884140).

Almost surely, 2^11399137 is an apocalyptic number.

It is an amenable number.

11399137 is a deficient number, since it is larger than the sum of its proper divisors (137423).

11399137 is an equidigital number, since it uses as much as digits as its factorization.

11399137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137422.

The product of its digits is 5103, while the sum is 34.

The square root of 11399137 is about 3376.2608015377. The cubic root of 11399137 is about 225.0560321356.

The spelling of 11399137 in words is "eleven million, three hundred ninety-nine thousand, one hundred thirty-seven".