1142666141 has 2 divisors, whose sum is σ = 1142666142. Its totient is φ = 1142666140.

The previous prime is 1142666123. The next prime is 1142666179. The reversal of 1142666141 is 1416662411.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1077218041 + 65448100 = 32821^2 + 8090^2 .

It is a cyclic number.

It is not a de Polignac number, because 1142666141 - 2²² = 1138471837 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1142666098 and 1142666107.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1142666641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 571333070 + 571333071.

It is an arithmetic number, because the mean of its divisors is an integer number (571333071).

Almost surely, 2^1142666141 is an apocalyptic number.

It is an amenable number.

1142666141 is a deficient number, since it is larger than the sum of its proper divisors (1).

1142666141 is an equidigital number, since it uses as much as digits as its factorization.

1142666141 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6912, while the sum is 32.

The square root of 1142666141 is about 33803.3451155355. The cubic root of 1142666141 is about 1045.4576693888.

The spelling of 1142666141 in words is "one billion, one hundred forty-two million, six hundred sixty-six thousand, one hundred forty-one".