1342406189 has 2 divisors, whose sum is σ = 1342406190. Its totient is φ = 1342406188.

The previous prime is 1342406167. The next prime is 1342406231. The reversal of 1342406189 is 9816042431.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1233203689 + 109202500 = 35117^2 + 10450^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1342406189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1342406119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 671203094 + 671203095.

It is an arithmetic number, because the mean of its divisors is an integer number (671203095).

Almost surely, 2^1342406189 is an apocalyptic number.

It is an amenable number.

1342406189 is a deficient number, since it is larger than the sum of its proper divisors (1).

1342406189 is an equidigital number, since it uses as much as digits as its factorization.

1342406189 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 1342406189 is about 36638.8617317733. The cubic root of 1342406189 is about 1103.1332674752.

The spelling of 1342406189 in words is "one billion, three hundred forty-two million, four hundred six thousand, one hundred eighty-nine".