1377680141 has 4 divisors (see below), whose sum is σ = 1378012284. Its totient is φ = 1377348000.

The previous prime is 1377680093. The next prime is 1377680159. The reversal of 1377680141 is 1410867731.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 504182116 + 873498025 = 22454^2 + 29555^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1377680141 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1377680095 and 1377680104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1377680041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 159770 + ... + 168171.

It is an arithmetic number, because the mean of its divisors is an integer number (344503071).

Almost surely, 2^1377680141 is an apocalyptic number.

It is an amenable number.

1377680141 is a deficient number, since it is larger than the sum of its proper divisors (332143).

1377680141 is an equidigital number, since it uses as much as digits as its factorization.

1377680141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332142.

The product of its (nonzero) digits is 28224, while the sum is 38.

The square root of 1377680141 is about 37117.1138560099. The cubic root of 1377680141 is about 1112.7120709377.

The spelling of 1377680141 in words is "one billion, three hundred seventy-seven million, six hundred eighty thousand, one hundred forty-one".