1376921055 has 32 divisors (see below), whose sum is σ = 2246630400. Its totient is φ = 719908992.

The previous prime is 1376921033. The next prime is 1376921083. The reversal of 1376921055 is 5501296731.

It is not a de Polignac number, because 1376921055 - 2⁷ = 1376920927 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 349386 + ... + 353304.

It is an arithmetic number, because the mean of its divisors is an integer number (70207200).

Almost surely, 2^1376921055 is an apocalyptic number.

1376921055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1376921055 is a deficient number, since it is larger than the sum of its proper divisors (869709345).

1376921055 is a wasteful number, since it uses less digits than its factorization.

1376921055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4383.

The product of its (nonzero) digits is 56700, while the sum is 39.

The square root of 1376921055 is about 37106.8868944836. The cubic root of 1376921055 is about 1112.5076695175.

The spelling of 1376921055 in words is "one billion, three hundred seventy-six million, nine hundred twenty-one thousand, fifty-five".