1377133161 has 8 divisors (see below), whose sum is σ = 1944188064. Its totient is φ = 864083520.

The previous prime is 1377133159. The next prime is 1377133183. The reversal of 1377133161 is 1613317731.

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

It is not a de Polignac number, because 1377133161 - 2¹ = 1377133159 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1377133361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13501255 + ... + 13501356.

It is an arithmetic number, because the mean of its divisors is an integer number (243023508).

Almost surely, 2^1377133161 is an apocalyptic number.

It is an amenable number.

1377133161 is a deficient number, since it is larger than the sum of its proper divisors (567054903).

1377133161 is a wasteful number, since it uses less digits than its factorization.

1377133161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27002631.

The product of its digits is 7938, while the sum is 33.

The square root of 1377133161 is about 37109.7448253151. The cubic root of 1377133161 is about 1112.5647915133.

The spelling of 1377133161 in words is "one billion, three hundred seventy-seven million, one hundred thirty-three thousand, one hundred sixty-one".