45170042 has 4 divisors (see below), whose sum is σ = 67755066. Its totient is φ = 22585020.

The previous prime is 45170039. The next prime is 45170051. The reversal of 45170042 is 24007154.

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

It can be written as a sum of positive squares in only one way, i.e., 44609041 + 561001 = 6679^2 + 749^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11292509 + ... + 11292512.

Almost surely, 2^45170042 is an apocalyptic number.

45170042 is a deficient number, since it is larger than the sum of its proper divisors (22585024).

45170042 is a wasteful number, since it uses less digits than its factorization.

45170042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22585023.

The product of its (nonzero) digits is 1120, while the sum is 23.

The square root of 45170042 is about 6720.8661644166. The cubic root of 45170042 is about 356.1367830650.

Adding to 45170042 its reverse (24007154), we get a palindrome (69177196).

The spelling of 45170042 in words is "forty-five million, one hundred seventy thousand, forty-two".