918249219 has 12 divisors (see below), whose sum is σ = 1357206136. Its totient is φ = 597929472.

The previous prime is 918249179. The next prime is 918249229. The reversal of 918249219 is 912942819.

It is not a de Polignac number, because 918249219 - 2⁸ = 918248963 is a prime.

It is a super-2 number, since 2×918249219² = 1686363256388219922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (918249229) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1185982 + ... + 1186755.

Almost surely, 2^918249219 is an apocalyptic number.

918249219 is a deficient number, since it is larger than the sum of its proper divisors (438956917).

918249219 is a wasteful number, since it uses less digits than its factorization.

918249219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2372786 (or 2372783 counting only the distinct ones).

The product of its digits is 93312, while the sum is 45.

The square root of 918249219 is about 30302.6272623349. The cubic root of 918249219 is about 971.9714815339.

The spelling of 918249219 in words is "nine hundred eighteen million, two hundred forty-nine thousand, two hundred nineteen".