109591394 has 12 divisors (see below), whose sum is σ = 180690342. Its totient is φ = 49814160.

The previous prime is 109591393. The next prime is 109591399. The reversal of 109591394 is 493195901.

It can be written as a sum of positive squares in only one way, i.e., 94342369 + 15249025 = 9713^2 + 3905^2 .

It is not an unprimeable number, because it can be changed into a prime (109591393) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 226187 + ... + 226670.

Almost surely, 2^109591394 is an apocalyptic number.

109591394 is a deficient number, since it is larger than the sum of its proper divisors (71098948).

109591394 is a wasteful number, since it uses less digits than its factorization.

109591394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 452881 (or 452870 counting only the distinct ones).

The product of its (nonzero) digits is 43740, while the sum is 41.

The square root of 109591394 is about 10468.5908316258. The cubic root of 109591394 is about 478.5479759885.

The spelling of 109591394 in words is "one hundred nine million, five hundred ninety-one thousand, three hundred ninety-four".