79148149 has 2 divisors, whose sum is σ = 79148150. Its totient is φ = 79148148.

The previous prime is 79148131. The next prime is 79148161. The reversal of 79148149 is 94184197.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 59567524 + 19580625 = 7718^2 + 4425^2 .

It is a cyclic number.

It is not a de Polignac number, because 79148149 - 2¹⁵ = 79115381 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (79148449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39574074 + 39574075.

It is an arithmetic number, because the mean of its divisors is an integer number (39574075).

Almost surely, 2^79148149 is an apocalyptic number.

It is an amenable number.

79148149 is a deficient number, since it is larger than the sum of its proper divisors (1).

79148149 is an equidigital number, since it uses as much as digits as its factorization.

79148149 is an evil number, because the sum of its binary digits is even.

The product of its digits is 72576, while the sum is 43.

The square root of 79148149 is about 8896.5245461360. The cubic root of 79148149 is about 429.3520961900.

It can be divided in two parts, 79148 and 149, that added together give a palindrome (79297).

The spelling of 79148149 in words is "seventy-nine million, one hundred forty-eight thousand, one hundred forty-nine".