1200148557 has 16 divisors (see below), whose sum is σ = 1657655040. Its totient is φ = 771446592.

The previous prime is 1200148553. The next prime is 1200148583. The reversal of 1200148557 is 7558410021.

It is not a de Polignac number, because 1200148557 - 2² = 1200148553 is a prime.

It is a congruent number.

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

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56748 + ... + 74970.

It is an arithmetic number, because the mean of its divisors is an integer number (103603440).

Almost surely, 2^1200148557 is an apocalyptic number.

It is an amenable number.

1200148557 is a deficient number, since it is larger than the sum of its proper divisors (457506483).

1200148557 is a wasteful number, since it uses less digits than its factorization.

1200148557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19012.

The product of its (nonzero) digits is 11200, while the sum is 33.

The square root of 1200148557 is about 34643.1603206174. The cubic root of 1200148557 is about 1062.7024188646.

Adding to 1200148557 its reverse (7558410021), we get a palindrome (8758558578).

The spelling of 1200148557 in words is "one billion, two hundred million, one hundred forty-eight thousand, five hundred fifty-seven".