1293214849 has 2 divisors, whose sum is σ = 1293214850. Its totient is φ = 1293214848.

The previous prime is 1293214847. The next prime is 1293214873. The reversal of 1293214849 is 9484123921.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1174295824 + 118919025 = 34268^2 + 10905^2 .

It is an emirp because it is prime and its reverse (9484123921) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1293214849 - 2¹ = 1293214847 is a prime.

Together with 1293214847, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1293214847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 646607424 + 646607425.

It is an arithmetic number, because the mean of its divisors is an integer number (646607425).

Almost surely, 2^1293214849 is an apocalyptic number.

It is an amenable number.

1293214849 is a deficient number, since it is larger than the sum of its proper divisors (1).

1293214849 is an equidigital number, since it uses as much as digits as its factorization.

1293214849 is an evil number, because the sum of its binary digits is even.

The product of its digits is 124416, while the sum is 43.

The square root of 1293214849 is about 35961.2965422550. The cubic root of 1293214849 is about 1089.4907839457.

The spelling of 1293214849 in words is "one billion, two hundred ninety-three million, two hundred fourteen thousand, eight hundred forty-nine".