1200148556 has 24 divisors (see below), whose sum is σ = 2245035744. Its totient is φ = 559982720.

The previous prime is 1200148553. The next prime is 1200148583. The reversal of 1200148556 is 6558410021.

It is not an unprimeable number, because it can be changed into a prime (1200148553) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 155315 + ... + 162858.

It is an arithmetic number, because the mean of its divisors is an integer number (93543156).

Almost surely, 2^1200148556 is an apocalyptic number.

It is an amenable number.

1200148556 is a deficient number, since it is larger than the sum of its proper divisors (1044887188).

1200148556 is a wasteful number, since it uses less digits than its factorization.

1200148556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318241 (or 318239 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 32.

The square root of 1200148556 is about 34643.1603061845. The cubic root of 1200148556 is about 1062.7024185694.

Adding to 1200148556 its reverse (6558410021), we get a palindrome (7758558577).

The spelling of 1200148556 in words is "one billion, two hundred million, one hundred forty-eight thousand, five hundred fifty-six".