1202126146 has 32 divisors (see below), whose sum is σ = 2019745728. Its totient is φ = 533010240.

The previous prime is 1202126099. The next prime is 1202126147. The reversal of 1202126146 is 6416212021.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1202126146.

It is not an unprimeable number, because it can be changed into a prime (1202126147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59385 + ... + 77011.

It is an arithmetic number, because the mean of its divisors is an integer number (63117054).

Almost surely, 2^1202126146 is an apocalyptic number.

1202126146 is a deficient number, since it is larger than the sum of its proper divisors (817619582).

1202126146 is a wasteful number, since it uses less digits than its factorization.

1202126146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17746.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 1202126146 is about 34671.6908442608. The cubic root of 1202126146 is about 1063.2858009061.

Adding to 1202126146 its reverse (6416212021), we get a palindrome (7618338167).

The spelling of 1202126146 in words is "one billion, two hundred two million, one hundred twenty-six thousand, one hundred forty-six".