45315442 has 8 divisors (see below), whose sum is σ = 68597100. Its totient is φ = 22449744.

The previous prime is 45315409. The next prime is 45315443. The reversal of 45315442 is 24451354.

It can be written as a sum of positive squares in 2 ways, for example, as 43441281 + 1874161 = 6591^2 + 1369^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 45315442.

It is not an unprimeable number, because it can be changed into a prime (45315443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 103717 + ... + 104152.

Almost surely, 2^45315442 is an apocalyptic number.

45315442 is a deficient number, since it is larger than the sum of its proper divisors (23281658).

45315442 is a wasteful number, since it uses less digits than its factorization.

45315442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207980.

The product of its digits is 9600, while the sum is 28.

The square root of 45315442 is about 6731.6745316452. The cubic root of 45315442 is about 356.5185023316.

Adding to 45315442 its reverse (24451354), we get a palindrome (69766796).

The spelling of 45315442 in words is "forty-five million, three hundred fifteen thousand, four hundred forty-two".