1378513142 has 16 divisors (see below), whose sum is σ = 2162211840. Its totient is φ = 657901992.

The previous prime is 1378513121. The next prime is 1378513159. The reversal of 1378513142 is 2413158731.

It is a super-4 number, since 4×1378513142⁴ (a number of 38 digits) contains 4444 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9248 + ... + 53315.

It is an arithmetic number, because the mean of its divisors is an integer number (135138240).

Almost surely, 2^1378513142 is an apocalyptic number.

1378513142 is a deficient number, since it is larger than the sum of its proper divisors (783698698).

1378513142 is a wasteful number, since it uses less digits than its factorization.

1378513142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63067.

The product of its digits is 20160, while the sum is 35.

The square root of 1378513142 is about 37128.3334126378. Note that the first 3 decimals coincide. The cubic root of 1378513142 is about 1112.9362892912.

The spelling of 1378513142 in words is "one billion, three hundred seventy-eight million, five hundred thirteen thousand, one hundred forty-two".