79143541 has 2 divisors, whose sum is σ = 79143542. Its totient is φ = 79143540.

The previous prime is 79143451. The next prime is 79143553. The reversal of 79143541 is 14534197.

Together with previous prime (79143451) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 78694641 + 448900 = 8871^2 + 670^2 .

It is a cyclic number.

It is not a de Polignac number, because 79143541 - 2²³ = 70754933 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 79143497 and 79143506.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (79143641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39571770 + 39571771.

It is an arithmetic number, because the mean of its divisors is an integer number (39571771).

Almost surely, 2^79143541 is an apocalyptic number.

It is an amenable number.

79143541 is a deficient number, since it is larger than the sum of its proper divisors (1).

79143541 is an equidigital number, since it uses as much as digits as its factorization.

79143541 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15120, while the sum is 34.

The square root of 79143541 is about 8896.2655648311. The cubic root of 79143541 is about 429.3437637448.

The spelling of 79143541 in words is "seventy-nine million, one hundred forty-three thousand, five hundred forty-one".