45131115 has 8 divisors (see below), whose sum is σ = 72209808. Its totient is φ = 24069920.

The previous prime is 45131113. The next prime is 45131117. The reversal of 45131115 is 51113154.

It is a happy number.

45131115 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (45131113) and next prime (45131117).

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

It is not a de Polignac number, because 45131115 - 2¹ = 45131113 is a prime.

It is a super-2 number, since 2×45131115² = 4073635082286450, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 45131091 and 45131100.

It is not an unprimeable number, because it can be changed into a prime (45131113) 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 7 ways as a sum of consecutive naturals, for example, 1504356 + ... + 1504385.

It is an arithmetic number, because the mean of its divisors is an integer number (9026226).

Almost surely, 2^45131115 is an apocalyptic number.

45131115 is a deficient number, since it is larger than the sum of its proper divisors (27078693).

45131115 is a wasteful number, since it uses less digits than its factorization.

45131115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3008749.

The product of its digits is 300, while the sum is 21.

The square root of 45131115 is about 6717.9695593237. The cubic root of 45131115 is about 356.0344488610.

Adding to 45131115 its reverse (51113154), we get a palindrome (96244269).

The spelling of 45131115 in words is "forty-five million, one hundred thirty-one thousand, one hundred fifteen".