11715145 has 8 divisors (see below), whose sum is σ = 15139656. Its totient is φ = 8651136.

The previous prime is 11715139. The next prime is 11715149. The reversal of 11715145 is 54151711.

It can be written as a sum of positive squares in 4 ways, for example, as 182329 + 11532816 = 427^2 + 3396^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11715145 - 2¹³ = 11706953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11715149) 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, 90052 + ... + 90181.

It is an arithmetic number, because the mean of its divisors is an integer number (1892457).

Almost surely, 2^11715145 is an apocalyptic number.

It is an amenable number.

11715145 is a deficient number, since it is larger than the sum of its proper divisors (3424511).

11715145 is a wasteful number, since it uses less digits than its factorization.

11715145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180251.

The product of its digits is 700, while the sum is 25.

The square root of 11715145 is about 3422.7393999544. The cubic root of 11715145 is about 227.1167802673.

Adding to 11715145 its reverse (54151711), we get a palindrome (65866856).

The spelling of 11715145 in words is "eleven million, seven hundred fifteen thousand, one hundred forty-five".