109239772 has 6 divisors (see below), whose sum is σ = 191169608. Its totient is φ = 54619884.

The previous prime is 109239769. The next prime is 109239791. The reversal of 109239772 is 277932901.

It is a super-2 number, since 2×109239772² = 23866655573223968, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13654968 + ... + 13654975.

Almost surely, 2^109239772 is an apocalyptic number.

It is an amenable number.

109239772 is a deficient number, since it is larger than the sum of its proper divisors (81929836).

109239772 is a wasteful number, since it uses less digits than its factorization.

109239772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27309947 (or 27309945 counting only the distinct ones).

The product of its (nonzero) digits is 47628, while the sum is 40.

The square root of 109239772 is about 10451.7831971391. The cubic root of 109239772 is about 478.0356234720.

It can be divided in two parts, 109239 and 772, that added together give a palindrome (110011).

The spelling of 109239772 in words is "one hundred nine million, two hundred thirty-nine thousand, seven hundred seventy-two".