1283145142 has 8 divisors (see below), whose sum is σ = 2037936456. Its totient is φ = 603832992.

The previous prime is 1283145139. The next prime is 1283145169. The reversal of 1283145142 is 2415413821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1283145142² = 3292922910876400328, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18869748 + ... + 18869815.

It is an arithmetic number, because the mean of its divisors is an integer number (254742057).

Almost surely, 2^1283145142 is an apocalyptic number.

1283145142 is a deficient number, since it is larger than the sum of its proper divisors (754791314).

1283145142 is a wasteful number, since it uses less digits than its factorization.

1283145142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37739582.

The product of its digits is 7680, while the sum is 31.

The square root of 1283145142 is about 35821.0153680769. The cubic root of 1283145142 is about 1086.6556139282.

Adding to 1283145142 its reverse (2415413821), we get a palindrome (3698558963).

The spelling of 1283145142 in words is "one billion, two hundred eighty-three million, one hundred forty-five thousand, one hundred forty-two".