142782361 has 2 divisors, whose sum is σ = 142782362. Its totient is φ = 142782360.

The previous prime is 142782347. The next prime is 142782383. The reversal of 142782361 is 163287241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 95942025 + 46840336 = 9795^2 + 6844^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-142782361 is a prime.

It is a super-2 number, since 2×142782361² = 40773605225468642, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (142782331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71391180 + 71391181.

It is an arithmetic number, because the mean of its divisors is an integer number (71391181).

Almost surely, 2^142782361 is an apocalyptic number.

It is an amenable number.

142782361 is a deficient number, since it is larger than the sum of its proper divisors (1).

142782361 is an equidigital number, since it uses as much as digits as its factorization.

142782361 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16128, while the sum is 34.

The square root of 142782361 is about 11949.1573343060. The cubic root of 142782361 is about 522.6667260947. Note that the first 3 decimals are identical.

The spelling of 142782361 in words is "one hundred forty-two million, seven hundred eighty-two thousand, three hundred sixty-one".