918138601 has 8 divisors (see below), whose sum is σ = 981586944. Its totient is φ = 855739200.

The previous prime is 918138569. The next prime is 918138607. The reversal of 918138601 is 106831819.

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

It is not a de Polignac number, because 918138601 - 2⁵ = 918138569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (918138607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 260425 + ... + 263926.

It is an arithmetic number, because the mean of its divisors is an integer number (122698368).

Almost surely, 2^918138601 is an apocalyptic number.

It is an amenable number.

918138601 is a deficient number, since it is larger than the sum of its proper divisors (63448343).

918138601 is a wasteful number, since it uses less digits than its factorization.

918138601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 524471.

The product of its (nonzero) digits is 10368, while the sum is 37.

The square root of 918138601 is about 30300.8019860861. The cubic root of 918138601 is about 971.9324500608.

The spelling of 918138601 in words is "nine hundred eighteen million, one hundred thirty-eight thousand, six hundred one".