45581015 has 4 divisors (see below), whose sum is σ = 54697224. Its totient is φ = 36464808.

The previous prime is 45580999. The next prime is 45581021. The reversal of 45581015 is 51018554.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 45581015 - 2⁴ = 45580999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4558097 + ... + 4558106.

It is an arithmetic number, because the mean of its divisors is an integer number (13674306).

Almost surely, 2^45581015 is an apocalyptic number.

45581015 is a deficient number, since it is larger than the sum of its proper divisors (9116209).

45581015 is an equidigital number, since it uses as much as digits as its factorization.

45581015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9116208.

The product of its (nonzero) digits is 4000, while the sum is 29.

The square root of 45581015 is about 6751.3713421793. The cubic root of 45581015 is about 357.2136099443.

Adding to 45581015 its reverse (51018554), we get a palindrome (96599569).

The spelling of 45581015 in words is "forty-five million, five hundred eighty-one thousand, fifteen".