109191416 has 16 divisors (see below), whose sum is σ = 205279800. Its totient is φ = 54450144.

The previous prime is 109191413. The next prime is 109191427. The reversal of 109191416 is 614191901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109191413) 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, 14975 + ... + 21038.

Almost surely, 2^109191416 is an apocalyptic number.

It is an amenable number.

109191416 is a deficient number, since it is larger than the sum of its proper divisors (96088384).

109191416 is a wasteful number, since it uses less digits than its factorization.

109191416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36398 (or 36394 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 32.

The square root of 109191416 is about 10449.4696516139. The cubic root of 109191416 is about 477.9650774251.

The spelling of 109191416 in words is "one hundred nine million, one hundred ninety-one thousand, four hundred sixteen".