1142101997 has 2 divisors, whose sum is σ = 1142101998. Its totient is φ = 1142101996.

The previous prime is 1142101991. The next prime is 1142102029. The reversal of 1142101997 is 7991012411.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1123188196 + 18913801 = 33514^2 + 4349^2 .

It is a cyclic number.

It is not a de Polignac number, because 1142101997 - 2¹⁴ = 1142085613 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1142101991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 571050998 + 571050999.

It is an arithmetic number, because the mean of its divisors is an integer number (571050999).

Almost surely, 2^1142101997 is an apocalyptic number.

It is an amenable number.

1142101997 is a deficient number, since it is larger than the sum of its proper divisors (1).

1142101997 is an equidigital number, since it uses as much as digits as its factorization.

1142101997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4536, while the sum is 35.

The square root of 1142101997 is about 33794.9995857375. Note that the first 3 decimals coincide. The cubic root of 1142101997 is about 1045.2855906168.

The spelling of 1142101997 in words is "one billion, one hundred forty-two million, one hundred one thousand, nine hundred ninety-seven".