1298242177 has 8 divisors (see below), whose sum is σ = 1304752680. Its totient is φ = 1291741440.

The previous prime is 1298242157. The next prime is 1298242201. The reversal of 1298242177 is 7712428921.

It can be written as a sum of positive squares in 4 ways, for example, as 447703281 + 850538896 = 21159^2 + 29164^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1298242177 - 2²³ = 1289853569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1298242157) 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 in 7 ways as a sum of consecutive naturals, for example, 555303 + ... + 557635.

It is an arithmetic number, because the mean of its divisors is an integer number (163094085).

Almost surely, 2^1298242177 is an apocalyptic number.

It is an amenable number.

1298242177 is a deficient number, since it is larger than the sum of its proper divisors (6510503).

1298242177 is a wasteful number, since it uses less digits than its factorization.

1298242177 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4883.

The product of its digits is 112896, while the sum is 43.

The square root of 1298242177 is about 36031.1278896456. The cubic root of 1298242177 is about 1090.9007443778.

The spelling of 1298242177 in words is "one billion, two hundred ninety-eight million, two hundred forty-two thousand, one hundred seventy-seven".