45315121 has 8 divisors (see below), whose sum is σ = 46645760. Its totient is φ = 43990128.

The previous prime is 45315119. The next prime is 45315143. The reversal of 45315121 is 12151354.

It is a happy number.

45315121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 45315121 - 2¹ = 45315119 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 45315092 and 45315101.

It is not an unprimeable number, because it can be changed into a prime (45315181) 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, 19120 + ... + 21358.

It is an arithmetic number, because the mean of its divisors is an integer number (5830720).

Almost surely, 2^45315121 is an apocalyptic number.

It is an amenable number.

45315121 is a deficient number, since it is larger than the sum of its proper divisors (1330639).

45315121 is a wasteful number, since it uses less digits than its factorization.

45315121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2823.

The product of its digits is 600, while the sum is 22.

The square root of 45315121 is about 6731.6506890955. The cubic root of 45315121 is about 356.5176605089.

Adding to 45315121 its reverse (12151354), we get a palindrome (57466475).

The spelling of 45315121 in words is "forty-five million, three hundred fifteen thousand, one hundred twenty-one".