2141140657 has 4 divisors (see below), whose sum is σ = 2141288820. Its totient is φ = 2140992496.

The previous prime is 2141140627. The next prime is 2141140669. The reversal of 2141140657 is 7560411412.

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 1730227216 + 410913441 = 41596^2 + 20271^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2141140657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2141140607) 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, 49738 + ... + 82195.

It is an arithmetic number, because the mean of its divisors is an integer number (535322205).

Almost surely, 2^2141140657 is an apocalyptic number.

It is an amenable number.

2141140657 is a deficient number, since it is larger than the sum of its proper divisors (148163).

2141140657 is a wasteful number, since it uses less digits than its factorization.

2141140657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148162.

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 2141140657 is about 46272.4611080932. The cubic root of 2141140657 is about 1288.8876610045.

The spelling of 2141140657 in words is "two billion, one hundred forty-one million, one hundred forty thousand, six hundred fifty-seven".