118881457 has 8 divisors (see below), whose sum is σ = 124597440. Its totient is φ = 113211120.

The previous prime is 118881439. The next prime is 118881463. The reversal of 118881457 is 754188811.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-118881457 is a prime.

It is not an unprimeable number, because it can be changed into a prime (118881487) 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, 6019 + ... + 16552.

It is an arithmetic number, because the mean of its divisors is an integer number (15574680).

Almost surely, 2^118881457 is an apocalyptic number.

It is an amenable number.

118881457 is a deficient number, since it is larger than the sum of its proper divisors (5715983).

118881457 is a wasteful number, since it uses less digits than its factorization.

118881457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22823.

The product of its digits is 71680, while the sum is 43.

The square root of 118881457 is about 10903.2773513288. The cubic root of 118881457 is about 491.7050926717.

The spelling of 118881457 in words is "one hundred eighteen million, eight hundred eighty-one thousand, four hundred fifty-seven".