109213747 has 2 divisors, whose sum is σ = 109213748. Its totient is φ = 109213746.

The previous prime is 109213733. The next prime is 109213757. The reversal of 109213747 is 747312901.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 109213747 - 2¹⁵ = 109180979 is a prime.

It is not a weakly prime, because it can be changed into another prime (109213717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54606873 + 54606874.

It is an arithmetic number, because the mean of its divisors is an integer number (54606874).

Almost surely, 2^109213747 is an apocalyptic number.

109213747 is a deficient number, since it is larger than the sum of its proper divisors (1).

109213747 is an equidigital number, since it uses as much as digits as its factorization.

109213747 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10584, while the sum is 34.

The square root of 109213747 is about 10450.5381201161. The cubic root of 109213747 is about 477.9976584679.

The spelling of 109213747 in words is "one hundred nine million, two hundred thirteen thousand, seven hundred forty-seven".