109087619 has 4 divisors (see below), whose sum is σ = 109218480. Its totient is φ = 108956760.

The previous prime is 109087577. The next prime is 109087651. The reversal of 109087619 is 916780901.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 916780901 = 89 ⋅10300909.

It is a cyclic number.

It is not a de Polignac number, because 109087619 - 2¹² = 109083523 is a prime.

It is a super-2 number, since 2×109087619² = 23800217238178322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (109087669) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64172 + ... + 65849.

It is an arithmetic number, because the mean of its divisors is an integer number (27304620).

Almost surely, 2^109087619 is an apocalyptic number.

109087619 is a deficient number, since it is larger than the sum of its proper divisors (130861).

109087619 is an equidigital number, since it uses as much as digits as its factorization.

109087619 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130860.

The product of its (nonzero) digits is 27216, while the sum is 41.

The square root of 109087619 is about 10444.5018550432. The cubic root of 109087619 is about 477.8135787347.

The spelling of 109087619 in words is "one hundred nine million, eighty-seven thousand, six hundred nineteen".