918831541 has 4 divisors (see below), whose sum is σ = 930462400. Its totient is φ = 907200684.

The previous prime is 918831517. The next prime is 918831553. The reversal of 918831541 is 145138819.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 918831541 - 2⁹ = 918831029 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 918831494 and 918831503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (918831581) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5815311 + ... + 5815468.

It is an arithmetic number, because the mean of its divisors is an integer number (232615600).

Almost surely, 2^918831541 is an apocalyptic number.

It is an amenable number.

918831541 is a deficient number, since it is larger than the sum of its proper divisors (11630859).

918831541 is a wasteful number, since it uses less digits than its factorization.

918831541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11630858.

The product of its digits is 34560, while the sum is 40.

The square root of 918831541 is about 30312.2341802778. The cubic root of 918831541 is about 972.1769017188.

The spelling of 918831541 in words is "nine hundred eighteen million, eight hundred thirty-one thousand, five hundred forty-one".