109779542 has 16 divisors (see below), whose sum is σ = 167443200. Its totient is φ = 53972160.

The previous prime is 109779521. The next prime is 109779547. The reversal of 109779542 is 245977901.

It is a junction number, because it is equal to n+sod(n) for n = 109779493 and 109779502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109779547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32384 + ... + 35612.

It is an arithmetic number, because the mean of its divisors is an integer number (10465200).

Almost surely, 2^109779542 is an apocalyptic number.

109779542 is a deficient number, since it is larger than the sum of its proper divisors (57663658).

109779542 is a wasteful number, since it uses less digits than its factorization.

109779542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3511.

The product of its (nonzero) digits is 158760, while the sum is 44.

The square root of 109779542 is about 10477.5732877418. The cubic root of 109779542 is about 478.8216786468.

The spelling of 109779542 in words is "one hundred nine million, seven hundred seventy-nine thousand, five hundred forty-two".