1376131140 has 48 divisors (see below), whose sum is σ = 4281298560. Its totient is φ = 366968160.

The previous prime is 1376131139. The next prime is 1376131153. The reversal of 1376131140 is 411316731.

1376131140 is a `hidden beast` number, since 1 + 3 + 7 + 613 + 1 + 1 + 40 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

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, 1273656 + ... + 1274735.

It is an arithmetic number, because the mean of its divisors is an integer number (89193720).

Almost surely, 2^1376131140 is an apocalyptic number.

1376131140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1376131140 is an abundant number, since it is smaller than the sum of its proper divisors (2905167420).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1376131140 is a wasteful number, since it uses less digits than its factorization.

1376131140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2548409 (or 2548401 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 1376131140 is about 37096.2415886030. The cubic root of 1376131140 is about 1112.2948869002.

Adding to 1376131140 its reverse (411316731), we get a palindrome (1787447871).

The spelling of 1376131140 in words is "one billion, three hundred seventy-six million, one hundred thirty-one thousand, one hundred forty".