45242115 has 32 divisors (see below), whose sum is σ = 74449920. Its totient is φ = 23452416.

The previous prime is 45242111. The next prime is 45242143. The reversal of 45242115 is 51124254.

It is not a de Polignac number, because 45242115 - 2² = 45242111 is a prime.

It is not an unprimeable number, because it can be changed into a prime (45242111) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 86244 + ... + 86766.

It is an arithmetic number, because the mean of its divisors is an integer number (2326560).

Almost surely, 2^45242115 is an apocalyptic number.

45242115 is a deficient number, since it is larger than the sum of its proper divisors (29207805).

45242115 is a wasteful number, since it uses less digits than its factorization.

45242115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 683.

The product of its digits is 1600, while the sum is 24.

The square root of 45242115 is about 6726.2259105683. The cubic root of 45242115 is about 356.3260988556.

Adding to 45242115 its reverse (51124254), we get a palindrome (96366369).

The spelling of 45242115 in words is "forty-five million, two hundred forty-two thousand, one hundred fifteen".