85139003 has 2 divisors, whose sum is σ = 85139004. Its totient is φ = 85139002.

The previous prime is 85138973. The next prime is 85139017. The reversal of 85139003 is 30093158.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 85139003 - 2⁸ = 85138747 is a prime.

It is not a weakly prime, because it can be changed into another prime (85139053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42569501 + 42569502.

It is an arithmetic number, because the mean of its divisors is an integer number (42569502).

Almost surely, 2^85139003 is an apocalyptic number.

85139003 is a deficient number, since it is larger than the sum of its proper divisors (1).

85139003 is an equidigital number, since it uses as much as digits as its factorization.

85139003 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3240, while the sum is 29.

The square root of 85139003 is about 9227.0798739363. The cubic root of 85139003 is about 439.9225121810.

The spelling of 85139003 in words is "eighty-five million, one hundred thirty-nine thousand, three".