79145953 has 2 divisors, whose sum is σ = 79145954. Its totient is φ = 79145952.

The previous prime is 79145951. The next prime is 79145971. The reversal of 79145953 is 35954197.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 47651409 + 31494544 = 6903^2 + 5612^2 .

It is an emirp because it is prime and its reverse (35954197) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 79145953 - 2¹ = 79145951 is a prime.

It is a super-3 number, since 3×79145953³ (a number of 25 digits) contains 333 as substring.

Together with 79145951, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (79145951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39572976 + 39572977.

It is an arithmetic number, because the mean of its divisors is an integer number (39572977).

Almost surely, 2^79145953 is an apocalyptic number.

It is an amenable number.

79145953 is a deficient number, since it is larger than the sum of its proper divisors (1).

79145953 is an equidigital number, since it uses as much as digits as its factorization.

79145953 is an evil number, because the sum of its binary digits is even.

The product of its digits is 170100, while the sum is 43.

The square root of 79145953 is about 8896.4011262982. The cubic root of 79145953 is about 429.3481252994.

The spelling of 79145953 in words is "seventy-nine million, one hundred forty-five thousand, nine hundred fifty-three".