45042142 has 8 divisors (see below), whose sum is σ = 70500816. Its totient is φ = 21541872.

The previous prime is 45042131. The next prime is 45042203. The reversal of 45042142 is 24124054.

It is a happy number.

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

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, 489543 + ... + 489634.

It is an arithmetic number, because the mean of its divisors is an integer number (8812602).

Almost surely, 2^45042142 is an apocalyptic number.

45042142 is a deficient number, since it is larger than the sum of its proper divisors (25458674).

45042142 is a wasteful number, since it uses less digits than its factorization.

45042142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 979202.

The product of its (nonzero) digits is 1280, while the sum is 22.

The square root of 45042142 is about 6711.3442766707. The cubic root of 45042142 is about 355.8003288419.

Adding to 45042142 its reverse (24124054), we get a palindrome (69166196).

The spelling of 45042142 in words is "forty-five million, forty-two thousand, one hundred forty-two".