918149745 has 16 divisors (see below), whose sum is σ = 1469520000. Its totient is φ = 489519744.

The previous prime is 918149741. The next prime is 918149759. The reversal of 918149745 is 547941819.

It is not a de Polignac number, because 918149745 - 2² = 918149741 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 918149694 and 918149703.

It is not an unprimeable number, because it can be changed into a prime (918149741) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48381 + ... + 64629.

It is an arithmetic number, because the mean of its divisors is an integer number (91845000).

Almost surely, 2^918149745 is an apocalyptic number.

It is an amenable number.

918149745 is a deficient number, since it is larger than the sum of its proper divisors (551370255).

918149745 is a wasteful number, since it uses less digits than its factorization.

918149745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20024.

The product of its digits is 362880, while the sum is 48.

The square root of 918149745 is about 30300.9858750503. The cubic root of 918149745 is about 971.9363823543.

The spelling of 918149745 in words is "nine hundred eighteen million, one hundred forty-nine thousand, seven hundred forty-five".