11742945 has 16 divisors (see below), whose sum is σ = 19144512. Its totient is φ = 6144320.

The previous prime is 11742911. The next prime is 11742959. The reversal of 11742945 is 54924711.

It is a happy number.

It is not a de Polignac number, because 11742945 - 2⁶ = 11742881 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6591 + ... + 8180.

It is an arithmetic number, because the mean of its divisors is an integer number (1196532).

Almost surely, 2^11742945 is an apocalyptic number.

11742945 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11742945 is a deficient number, since it is larger than the sum of its proper divisors (7401567).

11742945 is a wasteful number, since it uses less digits than its factorization.

11742945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14832.

The product of its digits is 10080, while the sum is 33.

The square root of 11742945 is about 3426.7980681680. The cubic root of 11742945 is about 227.2962874727.

The spelling of 11742945 in words is "eleven million, seven hundred forty-two thousand, nine hundred forty-five".