1201124992 has 16 divisors (see below), whose sum is σ = 2392866450. Its totient is φ = 600562432.

The previous prime is 1201124941. The next prime is 1201125001. The reversal of 1201124992 is 2994211021.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1148938816 + 52186176 = 33896^2 + 7224^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4691767 + ... + 4692022.

Almost surely, 2^1201124992 is an apocalyptic number.

It is an amenable number.

1201124992 is a deficient number, since it is larger than the sum of its proper divisors (1191741458).

1201124992 is an frugal number, since it uses more digits than its factorization.

1201124992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9383803 (or 9383791 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 31.

The square root of 1201124992 is about 34657.2502082898. The cubic root of 1201124992 is about 1062.9905439043.

The spelling of 1201124992 in words is "one billion, two hundred one million, one hundred twenty-four thousand, nine hundred ninety-two".