4202232145 has 4 divisors (see below), whose sum is σ = 5042678580. Its totient is φ = 3361785712.

The previous prime is 4202232137. The next prime is 4202232179. The reversal of 4202232145 is 5412322024.

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 1149006609 + 3053225536 = 33897^2 + 55256^2 .

It is a cyclic number.

It is not a de Polignac number, because 4202232145 - 2³ = 4202232137 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 420223210 + ... + 420223219.

It is an arithmetic number, because the mean of its divisors is an integer number (1260669645).

Almost surely, 2^4202232145 is an apocalyptic number.

It is an amenable number.

4202232145 is a deficient number, since it is larger than the sum of its proper divisors (840446435).

4202232145 is an equidigital number, since it uses as much as digits as its factorization.

4202232145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 840446434.

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 4202232145 is about 64824.6260691105. The cubic root of 4202232145 is about 1613.7144213316.

Adding to 4202232145 its reverse (5412322024), we get a palindrome (9614554169).

The spelling of 4202232145 in words is "four billion, two hundred two million, two hundred thirty-two thousand, one hundred forty-five".