1298237117 has 8 divisors (see below), whose sum is σ = 1311010272. Its totient is φ = 1285507600.

The previous prime is 1298237077. The next prime is 1298237119. The reversal of 1298237117 is 7117328921.

It is a happy number.

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 1298237117 - 2¹² = 1298233021 is a prime.

It is a super-2 number, since 2×1298237117² = 3370839223912943378, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1298237119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50567 + ... + 71787.

It is an arithmetic number, because the mean of its divisors is an integer number (163876284).

Almost surely, 2^1298237117 is an apocalyptic number.

It is an amenable number.

1298237117 is a deficient number, since it is larger than the sum of its proper divisors (12773155).

1298237117 is a wasteful number, since it uses less digits than its factorization.

1298237117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21819.

The product of its digits is 42336, while the sum is 41.

The square root of 1298237117 is about 36031.0576725136. The cubic root of 1298237117 is about 1090.8993270858.

The spelling of 1298237117 in words is "one billion, two hundred ninety-eight million, two hundred thirty-seven thousand, one hundred seventeen".