7420111 has 2 divisors, whose sum is σ = 7420112. Its totient is φ = 7420110.

The previous prime is 7420097. The next prime is 7420121. The reversal of 7420111 is 1110247.

It is a strong prime.

It is an emirp because it is prime and its reverse (1110247) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7420111 - 2⁵ = 7420079 is a prime.

7420111 is a lucky number.

It is equal to p₅₀₃₂₃₃ and since 7420111 and 503233 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7420121) 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 as a sum of consecutive naturals, namely, 3710055 + 3710056.

It is an arithmetic number, because the mean of its divisors is an integer number (3710056).

Almost surely, 2^7420111 is an apocalyptic number.

7420111 is a deficient number, since it is larger than the sum of its proper divisors (1).

7420111 is an equidigital number, since it uses as much as digits as its factorization.

7420111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 56, while the sum is 16.

The square root of 7420111 is about 2723.9880689900. The cubic root of 7420111 is about 195.0458888277.

Adding to 7420111 its reverse (1110247), we get a palindrome (8530358).

The spelling of 7420111 in words is "seven million, four hundred twenty thousand, one hundred eleven".