109697242 has 4 divisors (see below), whose sum is σ = 164545866. Its totient is φ = 54848620.

The previous prime is 109697239. The next prime is 109697299. The reversal of 109697242 is 242796901.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 242796901 = 23 ⋅10556387.

It can be written as a sum of positive squares in only one way, i.e., 89094721 + 20602521 = 9439^2 + 4539^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 109697195 and 109697204.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27424309 + ... + 27424312.

Almost surely, 2^109697242 is an apocalyptic number.

109697242 is a deficient number, since it is larger than the sum of its proper divisors (54848624).

109697242 is an equidigital number, since it uses as much as digits as its factorization.

109697242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54848623.

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 109697242 is about 10473.6451152404. The cubic root of 109697242 is about 478.7019937002.

The spelling of 109697242 in words is "one hundred nine million, six hundred ninety-seven thousand, two hundred forty-two".