45142103 has 4 divisors (see below), whose sum is σ = 45271800. Its totient is φ = 45012408.

The previous prime is 45142093. The next prime is 45142117. The reversal of 45142103 is 30124154.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30124154 = 2 ⋅15062077.

It is a cyclic number.

It is not a de Polignac number, because 45142103 - 2⁴ = 45142087 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45142133) 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, 64325 + ... + 65022.

It is an arithmetic number, because the mean of its divisors is an integer number (11317950).

Almost surely, 2^45142103 is an apocalyptic number.

45142103 is a deficient number, since it is larger than the sum of its proper divisors (129697).

45142103 is a wasteful number, since it uses less digits than its factorization.

45142103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129696.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 45142103 is about 6718.7873161754. The cubic root of 45142103 is about 356.0633408946.

Adding to 45142103 its reverse (30124154), we get a palindrome (75266257).

The spelling of 45142103 in words is "forty-five million, one hundred forty-two thousand, one hundred three".