2157014687 has 2 divisors, whose sum is σ = 2157014688. Its totient is φ = 2157014686.

The previous prime is 2157014659. The next prime is 2157014701. The reversal of 2157014687 is 7864107512.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2157014687 - 2¹⁴ = 2156998303 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2157014987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1078507343 + 1078507344.

It is an arithmetic number, because the mean of its divisors is an integer number (1078507344).

Almost surely, 2^2157014687 is an apocalyptic number.

2157014687 is a deficient number, since it is larger than the sum of its proper divisors (1).

2157014687 is an equidigital number, since it uses as much as digits as its factorization.

2157014687 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 94080, while the sum is 41.

The square root of 2157014687 is about 46443.6721954671. The cubic root of 2157014687 is about 1292.0650152035.

The spelling of 2157014687 in words is "two billion, one hundred fifty-seven million, fourteen thousand, six hundred eighty-seven".