1242161467 has 2 divisors, whose sum is σ = 1242161468. Its totient is φ = 1242161466.

The previous prime is 1242161419. The next prime is 1242161497. The reversal of 1242161467 is 7641612421.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1242161467 - 2¹¹ = 1242159419 is a prime.

It is a super-2 number, since 2×1242161467² = 3085930220199184178, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1242161497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 621080733 + 621080734.

It is an arithmetic number, because the mean of its divisors is an integer number (621080734).

Almost surely, 2^1242161467 is an apocalyptic number.

1242161467 is a deficient number, since it is larger than the sum of its proper divisors (1).

1242161467 is an equidigital number, since it uses as much as digits as its factorization.

1242161467 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16128, while the sum is 34.

The square root of 1242161467 is about 35244.3111295993. The cubic root of 1242161467 is about 1074.9609409281.

Adding to 1242161467 its reverse (7641612421), we get a palindrome (8883773888).

The spelling of 1242161467 in words is "one billion, two hundred forty-two million, one hundred sixty-one thousand, four hundred sixty-seven".