109797519 has 16 divisors (see below), whose sum is σ = 158868864. Its totient is φ = 67048800.

The previous prime is 109797497. The next prime is 109797529. The reversal of 109797519 is 915797901.

It is a happy number.

It is not a de Polignac number, because 109797519 - 2⁸ = 109797263 is a prime.

It is a super-2 number, since 2×109797519² = 24110990357110722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109797529) 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 15 ways as a sum of consecutive naturals, for example, 5637 + ... + 15854.

It is an arithmetic number, because the mean of its divisors is an integer number (9929304).

Almost surely, 2^109797519 is an apocalyptic number.

109797519 is a deficient number, since it is larger than the sum of its proper divisors (49071345).

109797519 is a wasteful number, since it uses less digits than its factorization.

109797519 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21638.

The product of its (nonzero) digits is 178605, while the sum is 48.

The square root of 109797519 is about 10478.4311325694. The cubic root of 109797519 is about 478.8478137759.

The spelling of 109797519 in words is "one hundred nine million, seven hundred ninety-seven thousand, five hundred nineteen".