1142455141 has 2 divisors, whose sum is σ = 1142455142. Its totient is φ = 1142455140.

The previous prime is 1142455117. The next prime is 1142455147. The reversal of 1142455141 is 1415542411.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 837813025 + 304642116 = 28945^2 + 17454^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1142455141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1142455147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 571227570 + 571227571.

It is an arithmetic number, because the mean of its divisors is an integer number (571227571).

Almost surely, 2^1142455141 is an apocalyptic number.

It is an amenable number.

1142455141 is a deficient number, since it is larger than the sum of its proper divisors (1).

1142455141 is an equidigital number, since it uses as much as digits as its factorization.

1142455141 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3200, while the sum is 28.

The square root of 1142455141 is about 33800.2239785478. The cubic root of 1142455141 is about 1045.3933154656.

Adding to 1142455141 its reverse (1415542411), we get a palindrome (2557997552).

The spelling of 1142455141 in words is "one billion, one hundred forty-two million, four hundred fifty-five thousand, one hundred forty-one".