85179541 has 2 divisors, whose sum is σ = 85179542. Its totient is φ = 85179540.

The previous prime is 85179487. The next prime is 85179559. The reversal of 85179541 is 14597158.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 82992100 + 2187441 = 9110^2 + 1479^2 .

It is a cyclic number.

It is not a de Polignac number, because 85179541 - 2¹³ = 85171349 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 85179494 and 85179503.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85179581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42589770 + 42589771.

It is an arithmetic number, because the mean of its divisors is an integer number (42589771).

Almost surely, 2^85179541 is an apocalyptic number.

It is an amenable number.

85179541 is a deficient number, since it is larger than the sum of its proper divisors (1).

85179541 is an equidigital number, since it uses as much as digits as its factorization.

85179541 is an evil number, because the sum of its binary digits is even.

The product of its digits is 50400, while the sum is 40.

The square root of 85179541 is about 9229.2762988221. The cubic root of 85179541 is about 439.9923225244.

The spelling of 85179541 in words is "eighty-five million, one hundred seventy-nine thousand, five hundred forty-one".