11950005 has 16 divisors (see below), whose sum is σ = 19192320. Its totient is φ = 6349248.

The previous prime is 11949979. The next prime is 11950007. The reversal of 11950005 is 50005911.

It is a happy number.

It is not a de Polignac number, because 11950005 - 2⁹ = 11949493 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11950007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3036 + ... + 5754.

It is an arithmetic number, because the mean of its divisors is an integer number (1199520).

Almost surely, 2^11950005 is an apocalyptic number.

11950005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11950005 is a deficient number, since it is larger than the sum of its proper divisors (7242315).

11950005 is a wasteful number, since it uses less digits than its factorization.

11950005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3020.

The product of its (nonzero) digits is 225, while the sum is 21.

The square root of 11950005 is about 3456.8779266847. The cubic root of 11950005 is about 228.6244615597.

Adding to 11950005 its reverse (50005911), we get a palindrome (61955916).

It can be divided in two parts, 119 and 50005, that multiplied together give a palindrome (5950595).

The spelling of 11950005 in words is "eleven million, nine hundred fifty thousand, five".