45915191 has 8 divisors (see below), whose sum is σ = 55236480. Its totient is φ = 37284408.

The previous prime is 45915169. The next prime is 45915197. The reversal of 45915191 is 19151954.

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

It is not a de Polignac number, because 45915191 - 2¹⁴ = 45898807 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 (45915197) 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, 172481 + ... + 172746.

It is an arithmetic number, because the mean of its divisors is an integer number (6904560).

Almost surely, 2^45915191 is an apocalyptic number.

45915191 is a deficient number, since it is larger than the sum of its proper divisors (9321289).

45915191 is a wasteful number, since it uses less digits than its factorization.

45915191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345253.

The product of its digits is 8100, while the sum is 35.

The square root of 45915191 is about 6776.0748962803. The cubic root of 45915191 is about 358.0844525748.

It can be divided in two parts, 4 and 5915191, that added together give a palindrome (5915195).

The spelling of 45915191 in words is "forty-five million, nine hundred fifteen thousand, one hundred ninety-one".