1202123245 has 8 divisors (see below), whose sum is σ = 1442801016. Its totient is φ = 961529856.

The previous prime is 1202123243. The next prime is 1202123269. The reversal of 1202123245 is 5423212021.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 225810729 + 976312516 = 15027^2 + 31246^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1202123245 - 2¹ = 1202123243 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 (1202123243) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 16269 + ... + 51661.

It is an arithmetic number, because the mean of its divisors is an integer number (180350127).

Almost surely, 2^1202123245 is an apocalyptic number.

It is an amenable number.

1202123245 is a deficient number, since it is larger than the sum of its proper divisors (240677771).

1202123245 is an equidigital number, since it uses as much as digits as its factorization.

1202123245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42191.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 1202123245 is about 34671.6490089525. The cubic root of 1202123245 is about 1063.2849455897.

Adding to 1202123245 its reverse (5423212021), we get a palindrome (6625335266).

The spelling of 1202123245 in words is "one billion, two hundred two million, one hundred twenty-three thousand, two hundred forty-five".