11398251 has 8 divisors (see below), whose sum is σ = 15289344. Its totient is φ = 7553000.

The previous prime is 11398249. The next prime is 11398253. The reversal of 11398251 is 15289311.

It is an interprime number because it is at equal distance from previous prime (11398249) and next prime (11398253).

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 11398251 - 2¹ = 11398249 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11398253) 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, 10875 + ... + 11876.

It is an arithmetic number, because the mean of its divisors is an integer number (1911168).

Almost surely, 2^11398251 is an apocalyptic number.

11398251 is a deficient number, since it is larger than the sum of its proper divisors (3891093).

11398251 is a wasteful number, since it uses less digits than its factorization.

11398251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22921.

The product of its digits is 2160, while the sum is 30.

The square root of 11398251 is about 3376.1295887451. The cubic root of 11398251 is about 225.0502011442.

Adding to 11398251 its product of digits (2160), we get a palindrome (11400411).

The spelling of 11398251 in words is "eleven million, three hundred ninety-eight thousand, two hundred fifty-one".