1117607257 has 8 divisors (see below), whose sum is σ = 1242402560. Its totient is φ = 998358480.

The previous prime is 1117607221. The next prime is 1117607263. The reversal of 1117607257 is 7527067111.

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 1117607257 - 2¹⁵ = 1117574489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1117607957) 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, 1386207 + ... + 1387012.

It is an arithmetic number, because the mean of its divisors is an integer number (155300320).

Almost surely, 2^1117607257 is an apocalyptic number.

It is an amenable number.

1117607257 is a deficient number, since it is larger than the sum of its proper divisors (124795303).

1117607257 is a wasteful number, since it uses less digits than its factorization.

1117607257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2773263.

The product of its (nonzero) digits is 20580, while the sum is 37.

The square root of 1117607257 is about 33430.6335117957. The cubic root of 1117607257 is about 1037.7587511976.

The spelling of 1117607257 in words is "one billion, one hundred seventeen million, six hundred seven thousand, two hundred fifty-seven".