2145230429 has 2 divisors, whose sum is σ = 2145230430. Its totient is φ = 2145230428.

The previous prime is 2145230419. The next prime is 2145230489. The reversal of 2145230429 is 9240325412.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1625299225 + 519931204 = 40315^2 + 22802^2 .

It is a cyclic number.

It is not a de Polignac number, because 2145230429 - 2¹² = 2145226333 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2145230395 and 2145230404.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2145230419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1072615214 + 1072615215.

It is an arithmetic number, because the mean of its divisors is an integer number (1072615215).

Almost surely, 2^2145230429 is an apocalyptic number.

It is an amenable number.

2145230429 is a deficient number, since it is larger than the sum of its proper divisors (1).

2145230429 is an equidigital number, since it uses as much as digits as its factorization.

2145230429 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 2145230429 is about 46316.6323149687. The cubic root of 2145230429 is about 1289.7077696718.

The spelling of 2145230429 in words is "two billion, one hundred forty-five million, two hundred thirty thousand, four hundred twenty-nine".