1200709142 has 32 divisors (see below), whose sum is σ = 1914105600. Its totient is φ = 563316768.

The previous prime is 1200709121. The next prime is 1200709151. The reversal of 1200709142 is 2419070021.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3167909 + ... + 3168287.

It is an arithmetic number, because the mean of its divisors is an integer number (59815800).

Almost surely, 2^1200709142 is an apocalyptic number.

1200709142 is a deficient number, since it is larger than the sum of its proper divisors (713396458).

1200709142 is a wasteful number, since it uses less digits than its factorization.

1200709142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 980.

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 1200709142 is about 34651.2502227553. The cubic root of 1200709142 is about 1062.8678545797.

Adding to 1200709142 its reverse (2419070021), we get a palindrome (3619779163).

The spelling of 1200709142 in words is "one billion, two hundred million, seven hundred nine thousand, one hundred forty-two".