2115427 has 2 divisors, whose sum is σ = 2115428. Its totient is φ = 2115426.

The previous prime is 2115397. The next prime is 2115431. The reversal of 2115427 is 7245112.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2115427 - 2¹¹ = 2113379 is a prime.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 2115398 and 2115407.

It is not a weakly prime, because it can be changed into another prime (2115437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1057713 + 1057714.

It is an arithmetic number, because the mean of its divisors is an integer number (1057714).

2^2115427 is an apocalyptic number.

2115427 is a deficient number, since it is larger than the sum of its proper divisors (1).

2115427 is an equidigital number, since it uses as much as digits as its factorization.

2115427 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 560, while the sum is 22.

The square root of 2115427 is about 1454.4507554400. The cubic root of 2115427 is about 128.3707310285.

The spelling of 2115427 in words is "two million, one hundred fifteen thousand, four hundred twenty-seven".