1340661177 has 6 divisors (see below), whose sum is σ = 1936510602. Its totient is φ = 893774112.

The previous prime is 1340661139. The next prime is 1340661187. The reversal of 1340661177 is 7711660431.

1340661177 is a `hidden beast` number, since 1 + 34 + 0 + 6 + 611 + 7 + 7 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1183635216 + 157025961 = 34404^2 + 12531^2 .

It is not a de Polignac number, because 1340661177 - 2¹⁴ = 1340644793 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1340661187) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 74481168 + ... + 74481185.

It is an arithmetic number, because the mean of its divisors is an integer number (322751767).

Almost surely, 2^1340661177 is an apocalyptic number.

It is an amenable number.

1340661177 is a deficient number, since it is larger than the sum of its proper divisors (595849425).

1340661177 is a wasteful number, since it uses less digits than its factorization.

1340661177 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148962359 (or 148962356 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 36.

The square root of 1340661177 is about 36615.0403113256. The cubic root of 1340661177 is about 1102.6550675804.

The spelling of 1340661177 in words is "one billion, three hundred forty million, six hundred sixty-one thousand, one hundred seventy-seven".