1200421532 has 6 divisors (see below), whose sum is σ = 2100737688. Its totient is φ = 600210764.

The previous prime is 1200421517. The next prime is 1200421591. The reversal of 1200421532 is 2351240021.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 150052688 + ... + 150052695.

It is an arithmetic number, because the mean of its divisors is an integer number (350122948).

Almost surely, 2^1200421532 is an apocalyptic number.

It is an amenable number.

1200421532 is a deficient number, since it is larger than the sum of its proper divisors (900316156).

1200421532 is a wasteful number, since it uses less digits than its factorization.

1200421532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300105387 (or 300105385 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 1200421532 is about 34647.0999074959. The cubic root of 1200421532 is about 1062.7829836691.

Adding to 1200421532 its reverse (2351240021), we get a palindrome (3551661553).

The spelling of 1200421532 in words is "one billion, two hundred million, four hundred twenty-one thousand, five hundred thirty-two".