1318073049 has 6 divisors (see below), whose sum is σ = 1903883306. Its totient is φ = 878715360.

The previous prime is 1318073041. The next prime is 1318073063. The reversal of 1318073049 is 9403708131.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1158177024 + 159896025 = 34032^2 + 12645^2 .

It is not a de Polignac number, because 1318073049 - 2³ = 1318073041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1318073041) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 73226272 + ... + 73226289.

Almost surely, 2^1318073049 is an apocalyptic number.

It is an amenable number.

1318073049 is a deficient number, since it is larger than the sum of its proper divisors (585810257).

1318073049 is a wasteful number, since it uses less digits than its factorization.

1318073049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146452567 (or 146452564 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 1318073049 is about 36305.2757736393. The cubic root of 1318073049 is about 1096.4272650048.

The spelling of 1318073049 in words is "one billion, three hundred eighteen million, seventy-three thousand, forty-nine".