918987157 has 8 divisors (see below), whose sum is σ = 1034871552. Its totient is φ = 808492800.

The previous prime is 918987107. The next prime is 918987163. The reversal of 918987157 is 751789819.

918987157 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 918987157 - 2⁷ = 918987029 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 918987098 and 918987107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (918987107) 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, 1347148 + ... + 1347829.

It is an arithmetic number, because the mean of its divisors is an integer number (129358944).

Almost surely, 2^918987157 is an apocalyptic number.

It is an amenable number.

918987157 is a deficient number, since it is larger than the sum of its proper divisors (115884395).

918987157 is a wasteful number, since it uses less digits than its factorization.

918987157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2695019.

The product of its digits is 1270080, while the sum is 55.

The square root of 918987157 is about 30314.8009559687. The cubic root of 918987157 is about 972.2317821962.

The spelling of 918987157 in words is "nine hundred eighteen million, nine hundred eighty-seven thousand, one hundred fifty-seven".