109619144 has 8 divisors (see below), whose sum is σ = 205535910. Its totient is φ = 54809568.

The previous prime is 109619143. The next prime is 109619171. The reversal of 109619144 is 441916901.

It can be written as a sum of positive squares in only one way, i.e., 92891044 + 16728100 = 9638^2 + 4090^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (109619141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6851189 + ... + 6851204.

Almost surely, 2^109619144 is an apocalyptic number.

It is an amenable number.

109619144 is a deficient number, since it is larger than the sum of its proper divisors (95916766).

109619144 is a wasteful number, since it uses less digits than its factorization.

109619144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13702399 (or 13702395 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 35.

The square root of 109619144 is about 10469.9161410204. The cubic root of 109619144 is about 478.5883641526.

The spelling of 109619144 in words is "one hundred nine million, six hundred nineteen thousand, one hundred forty-four".