1200621052 has 12 divisors (see below), whose sum is σ = 2102499000. Its totient is φ = 599907056.

The previous prime is 1200621047. The next prime is 1200621053. The reversal of 1200621052 is 2501260021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200621053) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 94123 + ... + 106114.

It is an arithmetic number, because the mean of its divisors is an integer number (175208250).

Almost surely, 2^1200621052 is an apocalyptic number.

It is an amenable number.

1200621052 is a deficient number, since it is larger than the sum of its proper divisors (901877948).

1200621052 is a wasteful number, since it uses less digits than its factorization.

1200621052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201740 (or 201738 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 1200621052 is about 34649.9791053328. The cubic root of 1200621052 is about 1062.8418615184.

Adding to 1200621052 its reverse (2501260021), we get a palindrome (3701881073).

The spelling of 1200621052 in words is "one billion, two hundred million, six hundred twenty-one thousand, fifty-two".