118398507 has 8 divisors (see below), whose sum is σ = 158427600. Its totient is φ = 78650880.

The previous prime is 118398451. The next prime is 118398521. The reversal of 118398507 is 705893811.

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

It is not a de Polignac number, because 118398507 - 2¹¹ = 118396459 is a prime.

It is not an unprimeable number, because it can be changed into a prime (118390507) 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, 69382 + ... + 71067.

It is an arithmetic number, because the mean of its divisors is an integer number (19803450).

Almost surely, 2^118398507 is an apocalyptic number.

118398507 is a deficient number, since it is larger than the sum of its proper divisors (40029093).

118398507 is a wasteful number, since it uses less digits than its factorization.

118398507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140733.

The product of its (nonzero) digits is 60480, while the sum is 42.

The square root of 118398507 is about 10881.1078020577. The cubic root of 118398507 is about 491.0383464948.

The spelling of 118398507 in words is "one hundred eighteen million, three hundred ninety-eight thousand, five hundred seven".