109407813 has 4 divisors (see below), whose sum is σ = 145877088. Its totient is φ = 72938540.

The previous prime is 109407799. The next prime is 109407829. The reversal of 109407813 is 318704901.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 318704901 = 3 ⋅106234967.

It is a cyclic number.

It is not a de Polignac number, because 109407813 - 2⁴ = 109407797 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109407863) 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 3 ways as a sum of consecutive naturals, for example, 18234633 + ... + 18234638.

It is an arithmetic number, because the mean of its divisors is an integer number (36469272).

Almost surely, 2^109407813 is an apocalyptic number.

It is an amenable number.

109407813 is a deficient number, since it is larger than the sum of its proper divisors (36469275).

109407813 is an equidigital number, since it uses as much as digits as its factorization.

109407813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36469274.

The product of its (nonzero) digits is 6048, while the sum is 33.

The square root of 109407813 is about 10459.8189754890. The cubic root of 109407813 is about 478.2806149197.

The spelling of 109407813 in words is "one hundred nine million, four hundred seven thousand, eight hundred thirteen".