1377106725 has 12 divisors (see below), whose sum is σ = 2276816576. Its totient is φ = 734456880.

The previous prime is 1377106667. The next prime is 1377106727. The reversal of 1377106725 is 5276017731.

It is not a de Polignac number, because 1377106725 - 2⁷ = 1377106597 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1377106727) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9180637 + ... + 9180786.

Almost surely, 2^1377106725 is an apocalyptic number.

1377106725 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1377106725 is a deficient number, since it is larger than the sum of its proper divisors (899709851).

1377106725 is a wasteful number, since it uses less digits than its factorization.

1377106725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18361436 (or 18361431 counting only the distinct ones).

The product of its (nonzero) digits is 61740, while the sum is 39.

The square root of 1377106725 is about 37109.3886368396. The cubic root of 1377106725 is about 1112.5576723879.

The spelling of 1377106725 in words is "one billion, three hundred seventy-seven million, one hundred six thousand, seven hundred twenty-five".