1415742281 has 2 divisors, whose sum is σ = 1415742282. Its totient is φ = 1415742280.

The previous prime is 1415742239. The next prime is 1415742311. The reversal of 1415742281 is 1822475141.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1203049225 + 212693056 = 34685^2 + 14584^2 .

It is a cyclic number.

It is not a de Polignac number, because 1415742281 - 2¹⁸ = 1415480137 is a prime.

It is a super-2 number, since 2×1415742281² = 4008652412422165922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1415742481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 707871140 + 707871141.

It is an arithmetic number, because the mean of its divisors is an integer number (707871141).

Almost surely, 2^1415742281 is an apocalyptic number.

It is an amenable number.

1415742281 is a deficient number, since it is larger than the sum of its proper divisors (1).

1415742281 is an equidigital number, since it uses as much as digits as its factorization.

1415742281 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17920, while the sum is 35.

The square root of 1415742281 is about 37626.3508860479. The cubic root of 1415742281 is about 1122.8663509245.

The spelling of 1415742281 in words is "one billion, four hundred fifteen million, seven hundred forty-two thousand, two hundred eighty-one".