1204142141 has 2 divisors, whose sum is σ = 1204142142. Its totient is φ = 1204142140.

The previous prime is 1204142131. The next prime is 1204142153. The reversal of 1204142141 is 1412414021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1033944025 + 170198116 = 32155^2 + 13046^2 .

It is an emirp because it is prime and its reverse (1412414021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1204142141 - 2¹⁰ = 1204141117 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1204142131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 602071070 + 602071071.

It is an arithmetic number, because the mean of its divisors is an integer number (602071071).

Almost surely, 2^1204142141 is an apocalyptic number.

It is an amenable number.

1204142141 is a deficient number, since it is larger than the sum of its proper divisors (1).

1204142141 is an equidigital number, since it uses as much as digits as its factorization.

1204142141 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 256, while the sum is 20.

The square root of 1204142141 is about 34700.7513031058. The cubic root of 1204142141 is about 1063.8798543955.

Adding to 1204142141 its reverse (1412414021), we get a palindrome (2616556162).

The spelling of 1204142141 in words is "one billion, two hundred four million, one hundred forty-two thousand, one hundred forty-one".