11901745 has 16 divisors (see below), whose sum is σ = 14976000. Its totient is φ = 9067968.

The previous prime is 11901727. The next prime is 11901749. The reversal of 11901745 is 54710911.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11901745 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11901749) by changing a digit.

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, 10936 + ... + 11974.

It is an arithmetic number, because the mean of its divisors is an integer number (936000).

Almost surely, 2^11901745 is an apocalyptic number.

It is an amenable number.

11901745 is a deficient number, since it is larger than the sum of its proper divisors (3074255).

11901745 is a wasteful number, since it uses less digits than its factorization.

11901745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1152.

The product of its (nonzero) digits is 1260, while the sum is 28.

The square root of 11901745 is about 3449.8905779749. The cubic root of 11901745 is about 228.3162803018.

The spelling of 11901745 in words is "eleven million, nine hundred one thousand, seven hundred forty-five".