1121202146 has 4 divisors (see below), whose sum is σ = 1681803222. Its totient is φ = 560601072.

The previous prime is 1121202073. The next prime is 1121202151. The reversal of 1121202146 is 6412021211.

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 only one way, i.e., 769452121 + 351750025 = 27739^2 + 18755^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 280300535 + ... + 280300538.

Almost surely, 2^1121202146 is an apocalyptic number.

1121202146 is a deficient number, since it is larger than the sum of its proper divisors (560601076).

1121202146 is an equidigital number, since it uses as much as digits as its factorization.

1121202146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 560601075.

The product of its (nonzero) digits is 192, while the sum is 20.

The square root of 1121202146 is about 33484.3567356460. The cubic root of 1121202146 is about 1038.8702432288.

Adding to 1121202146 its reverse (6412021211), we get a palindrome (7533223357).

The spelling of 1121202146 in words is "one billion, one hundred twenty-one million, two hundred two thousand, one hundred forty-six".