2152429 has 2 divisors, whose sum is σ = 2152430. Its totient is φ = 2152428.

The previous prime is 2152427. The next prime is 2152433. The reversal of 2152429 is 9242512.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1954404 + 198025 = 1398^2 + 445^2 .

It is a cyclic number.

It is not a de Polignac number, because 2152429 - 2¹ = 2152427 is a prime.

Together with 2152427, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2152427) 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, 1076214 + 1076215.

It is an arithmetic number, because the mean of its divisors is an integer number (1076215).

2^2152429 is an apocalyptic number.

It is an amenable number.

2152429 is a deficient number, since it is larger than the sum of its proper divisors (1).

2152429 is an equidigital number, since it uses as much as digits as its factorization.

2152429 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1440, while the sum is 25.

The square root of 2152429 is about 1467.1158781773. The cubic root of 2152429 is about 129.1148747381.

The spelling of 2152429 in words is "two million, one hundred fifty-two thousand, four hundred twenty-nine".