11628139 has 4 divisors (see below), whose sum is σ = 11636560. Its totient is φ = 11619720.

The previous prime is 11628121. The next prime is 11628151. The reversal of 11628139 is 93182611.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 93182611 = 997 ⋅93463.

It is a cyclic number.

It is not a de Polignac number, because 11628139 - 2¹¹ = 11626091 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11628139.

It is not an unprimeable number, because it can be changed into a prime (11622139) 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, 1599 + ... + 5080.

It is an arithmetic number, because the mean of its divisors is an integer number (2909140).

Almost surely, 2^11628139 is an apocalyptic number.

11628139 is a deficient number, since it is larger than the sum of its proper divisors (8421).

11628139 is an equidigital number, since it uses as much as digits as its factorization.

11628139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8420.

The product of its digits is 2592, while the sum is 31.

The square root of 11628139 is about 3410.0057184703. The cubic root of 11628139 is about 226.5531325402.

The spelling of 11628139 in words is "eleven million, six hundred twenty-eight thousand, one hundred thirty-nine".