2140135677 has 6 divisors (see below), whose sum is σ = 3091307102. Its totient is φ = 1426757112.

The previous prime is 2140135667. The next prime is 2140135691. The reversal of 2140135677 is 7765310412.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 2095259076 + 44876601 = 45774^2 + 6699^2 .

It is not a de Polignac number, because 2140135677 - 2⁸ = 2140135421 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 (2140135607) 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, 118896418 + ... + 118896435.

Almost surely, 2^2140135677 is an apocalyptic number.

It is an amenable number.

2140135677 is a deficient number, since it is larger than the sum of its proper divisors (951171425).

2140135677 is a wasteful number, since it uses less digits than its factorization.

2140135677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237792859 (or 237792856 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 36.

The square root of 2140135677 is about 46261.6004586958. The cubic root of 2140135677 is about 1288.6859758221.

The spelling of 2140135677 in words is "two billion, one hundred forty million, one hundred thirty-five thousand, six hundred seventy-seven".