2125987 has 2 divisors, whose sum is σ = 2125988. Its totient is φ = 2125986.

The previous prime is 2125939. The next prime is 2125993. The reversal of 2125987 is 7895212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2125987 - 2¹¹ = 2123939 is a prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (2125927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1062993 + 1062994.

It is an arithmetic number, because the mean of its divisors is an integer number (1062994).

2^2125987 is an apocalyptic number.

2125987 is a deficient number, since it is larger than the sum of its proper divisors (1).

2125987 is an equidigital number, since it uses as much as digits as its factorization.

2125987 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10080, while the sum is 34.

The square root of 2125987 is about 1458.0764726173. The cubic root of 2125987 is about 128.5839811965.

The spelling of 2125987 in words is "two million, one hundred twenty-five thousand, nine hundred eighty-seven".