2152399 has 2 divisors, whose sum is σ = 2152400. Its totient is φ = 2152398.

The previous prime is 2152393. The next prime is 2152427. The reversal of 2152399 is 9932512.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2152399 - 2¹⁵ = 2119631 is a prime.

2152399 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 2152399.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2152393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1076199 + 1076200.

It is an arithmetic number, because the mean of its divisors is an integer number (1076200).

2^2152399 is an apocalyptic number.

2152399 is a deficient number, since it is larger than the sum of its proper divisors (1).

2152399 is an equidigital number, since it uses as much as digits as its factorization.

2152399 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4860, while the sum is 31.

The square root of 2152399 is about 1467.1056540004. The cubic root of 2152399 is about 129.1142748788.

The spelling of 2152399 in words is "two million, one hundred fifty-two thousand, three hundred ninety-nine".