79247141 has 2 divisors, whose sum is σ = 79247142. Its totient is φ = 79247140.

The previous prime is 79247117. The next prime is 79247143. The reversal of 79247141 is 14174297.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 73170916 + 6076225 = 8554^2 + 2465^2 .

It is a cyclic number.

It is not a de Polignac number, because 79247141 - 2¹⁰ = 79246117 is a prime.

Together with 79247143, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (79247143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39623570 + 39623571.

It is an arithmetic number, because the mean of its divisors is an integer number (39623571).

Almost surely, 2^79247141 is an apocalyptic number.

It is an amenable number.

79247141 is a deficient number, since it is larger than the sum of its proper divisors (1).

79247141 is an equidigital number, since it uses as much as digits as its factorization.

79247141 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14112, while the sum is 35.

The square root of 79247141 is about 8902.0863284963. The cubic root of 79247141 is about 429.5310210545.

The spelling of 79247141 in words is "seventy-nine million, two hundred forty-seven thousand, one hundred forty-one".