85149527 has 2 divisors, whose sum is σ = 85149528. Its totient is φ = 85149526.

The previous prime is 85149521. The next prime is 85149541. The reversal of 85149527 is 72594158.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 85149527 - 2²⁶ = 18040663 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85149521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42574763 + 42574764.

It is an arithmetic number, because the mean of its divisors is an integer number (42574764).

Almost surely, 2^85149527 is an apocalyptic number.

85149527 is a deficient number, since it is larger than the sum of its proper divisors (1).

85149527 is an equidigital number, since it uses as much as digits as its factorization.

85149527 is an evil number, because the sum of its binary digits is even.

The product of its digits is 100800, while the sum is 41.

The square root of 85149527 is about 9227.6501342433. The cubic root of 85149527 is about 439.9406376527.

The spelling of 85149527 in words is "eighty-five million, one hundred forty-nine thousand, five hundred twenty-seven".