1481279297 has 2 divisors, whose sum is σ = 1481279298. Its totient is φ = 1481279296.

The previous prime is 1481279279. The next prime is 1481279321. The reversal of 1481279297 is 7929721841.

Together with previous prime (1481279279) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1316310961 + 164968336 = 36281^2 + 12844^2 .

It is an emirp because it is prime and its reverse (7929721841) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1481279297 is a prime.

It is not a weakly prime, because it can be changed into another prime (1481279257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 740639648 + 740639649.

It is an arithmetic number, because the mean of its divisors is an integer number (740639649).

Almost surely, 2^1481279297 is an apocalyptic number.

It is an amenable number.

1481279297 is a deficient number, since it is larger than the sum of its proper divisors (1).

1481279297 is an equidigital number, since it uses as much as digits as its factorization.

1481279297 is an evil number, because the sum of its binary digits is even.

The product of its digits is 508032, while the sum is 50.

The square root of 1481279297 is about 38487.3914028997. The cubic root of 1481279297 is about 1139.9321025018.

The spelling of 1481279297 in words is "one billion, four hundred eighty-one million, two hundred seventy-nine thousand, two hundred ninety-seven".