1042230545 has 4 divisors (see below), whose sum is σ = 1250676660. Its totient is φ = 833784432.

The previous prime is 1042230521. The next prime is 1042230557. The reversal of 1042230545 is 5450322401.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 715669504 + 326561041 = 26752^2 + 18071^2 .

It is a cyclic number.

It is not a de Polignac number, because 1042230545 - 2⁶ = 1042230481 is a prime.

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, 104223050 + ... + 104223059.

It is an arithmetic number, because the mean of its divisors is an integer number (312669165).

Almost surely, 2^1042230545 is an apocalyptic number.

It is an amenable number.

1042230545 is a deficient number, since it is larger than the sum of its proper divisors (208446115).

1042230545 is an equidigital number, since it uses as much as digits as its factorization.

1042230545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208446114.

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 1042230545 is about 32283.5956021011. The cubic root of 1042230545 is about 1013.8832127697.

Adding to 1042230545 its reverse (5450322401), we get a palindrome (6492552946).

The spelling of 1042230545 in words is "one billion, forty-two million, two hundred thirty thousand, five hundred forty-five".