2431189 has 2 divisors, whose sum is σ = 2431190. Its totient is φ = 2431188.

The previous prime is 2431181. The next prime is 2431201. The reversal of 2431189 is 9811342.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1868689 + 562500 = 1367^2 + 750^2 .

It is a cyclic number.

It is not a de Polignac number, because 2431189 - 2³ = 2431181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2431181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1215594 + 1215595.

It is an arithmetic number, because the mean of its divisors is an integer number (1215595).

2^2431189 is an apocalyptic number.

It is an amenable number.

2431189 is a deficient number, since it is larger than the sum of its proper divisors (1).

2431189 is an equidigital number, since it uses as much as digits as its factorization.

2431189 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1728, while the sum is 28.

The square root of 2431189 is about 1559.2270520999. The cubic root of 2431189 is about 134.4640663532.

It can be divided in two parts, 24 and 31189, that added together give a palindrome (31213).

The spelling of 2431189 in words is "two million, four hundred thirty-one thousand, one hundred eighty-nine".