1242161093 has 2 divisors, whose sum is σ = 1242161094. Its totient is φ = 1242161092.

The previous prime is 1242161033. The next prime is 1242161101. The reversal of 1242161093 is 3901612421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 868009444 + 374151649 = 29462^2 + 19343^2 .

It is a cyclic number.

It is not a de Polignac number, because 1242161093 - 2⁶ = 1242161029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1242161033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 621080546 + 621080547.

It is an arithmetic number, because the mean of its divisors is an integer number (621080547).

Almost surely, 2^1242161093 is an apocalyptic number.

It is an amenable number.

1242161093 is a deficient number, since it is larger than the sum of its proper divisors (1).

1242161093 is an equidigital number, since it uses as much as digits as its factorization.

1242161093 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 1242161093 is about 35244.3058237781. The cubic root of 1242161093 is about 1074.9608330421.

The spelling of 1242161093 in words is "one billion, two hundred forty-two million, one hundred sixty-one thousand, ninety-three".