11915045 has 8 divisors (see below), whose sum is σ = 15139224. Its totient is φ = 8971264.

The previous prime is 11915041. The next prime is 11915047. The reversal of 11915045 is 54051911.

11915045 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1117249 + 10797796 = 1057^2 + 3286^2 .

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 11915045 - 2² = 11915041 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 (11915041) 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, 70004 + ... + 70173.

It is an arithmetic number, because the mean of its divisors is an integer number (1892403).

Almost surely, 2^11915045 is an apocalyptic number.

It is an amenable number.

11915045 is a deficient number, since it is larger than the sum of its proper divisors (3224179).

11915045 is a wasteful number, since it uses less digits than its factorization.

11915045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140199.

The product of its (nonzero) digits is 900, while the sum is 26.

The square root of 11915045 is about 3451.8176371297. The cubic root of 11915045 is about 228.4012951774.

Adding to 11915045 its reverse (54051911), we get a palindrome (65966956).

The spelling of 11915045 in words is "eleven million, nine hundred fifteen thousand, forty-five".