109213387 has 4 divisors (see below), whose sum is σ = 114961480. Its totient is φ = 103465296.

The previous prime is 109213373. The next prime is 109213459. The reversal of 109213387 is 783312901.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 109213387 - 2¹⁵ = 109180619 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (109213187) 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, 2874018 + ... + 2874055.

It is an arithmetic number, because the mean of its divisors is an integer number (28740370).

Almost surely, 2^109213387 is an apocalyptic number.

109213387 is a deficient number, since it is larger than the sum of its proper divisors (5748093).

109213387 is an equidigital number, since it uses as much as digits as its factorization.

109213387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5748092.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 109213387 is about 10450.5208961085. The cubic root of 109213387 is about 477.9971332613.

The spelling of 109213387 in words is "one hundred nine million, two hundred thirteen thousand, three hundred eighty-seven".