1342989169 has 2 divisors, whose sum is σ = 1342989170. Its totient is φ = 1342989168.

The previous prime is 1342989127. The next prime is 1342989181. The reversal of 1342989169 is 9619892431.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1170460944 + 172528225 = 34212^2 + 13135^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1342989169 is a prime.

It is a super-2 number, since 2×1342989169² = 3607239816102621122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1342989199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 671494584 + 671494585.

It is an arithmetic number, because the mean of its divisors is an integer number (671494585).

Almost surely, 2^1342989169 is an apocalyptic number.

It is an amenable number.

1342989169 is a deficient number, since it is larger than the sum of its proper divisors (1).

1342989169 is an equidigital number, since it uses as much as digits as its factorization.

1342989169 is an evil number, because the sum of its binary digits is even.

The product of its digits is 839808, while the sum is 52.

The square root of 1342989169 is about 36646.8166284604. The cubic root of 1342989169 is about 1103.2929338921.

The spelling of 1342989169 in words is "one billion, three hundred forty-two million, nine hundred eighty-nine thousand, one hundred sixty-nine".