11955247 has 4 divisors (see below), whose sum is σ = 12233320. Its totient is φ = 11677176.

The previous prime is 11955227. The next prime is 11955277. The reversal of 11955247 is 74255911.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11955247 - 2¹⁵ = 11922479 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11955227) 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, 138972 + ... + 139057.

It is an arithmetic number, because the mean of its divisors is an integer number (3058330).

Almost surely, 2^11955247 is an apocalyptic number.

11955247 is a deficient number, since it is larger than the sum of its proper divisors (278073).

11955247 is an equidigital number, since it uses as much as digits as its factorization.

11955247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278072.

The product of its digits is 12600, while the sum is 34.

The square root of 11955247 is about 3457.6360421537. The cubic root of 11955247 is about 228.6578862105.

The spelling of 11955247 in words is "eleven million, nine hundred fifty-five thousand, two hundred forty-seven".