1042345225 has 24 divisors (see below), whose sum is σ = 1440577440. Its totient is φ = 743512320.

The previous prime is 1042345207. The next prime is 1042345229. The reversal of 1042345225 is 5225432401.

It is not a de Polignac number, because 1042345225 - 2²¹ = 1040248073 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1042345193 and 1042345202.

It is not an unprimeable number, because it can be changed into a prime (1042345229) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 56467 + ... + 72616.

It is an arithmetic number, because the mean of its divisors is an integer number (60024060).

Almost surely, 2^1042345225 is an apocalyptic number.

It is an amenable number.

1042345225 is a deficient number, since it is larger than the sum of its proper divisors (398232215).

1042345225 is a wasteful number, since it uses less digits than its factorization.

1042345225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129129 (or 129124 counting only the distinct ones).

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

The square root of 1042345225 is about 32285.3716874996. The cubic root of 1042345225 is about 1013.9203983563.

Adding to 1042345225 its reverse (5225432401), we get a palindrome (6267777626).

The spelling of 1042345225 in words is "one billion, forty-two million, three hundred forty-five thousand, two hundred twenty-five".