85152031 has 8 divisors (see below), whose sum is σ = 90273744. Its totient is φ = 80042880.

The previous prime is 85152029. The next prime is 85152073. The reversal of 85152031 is 13025158.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 85152031 - 2¹ = 85152029 is a prime.

It is a super-2 number, since 2×85152031² = 14501736766849922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 85151987 and 85152005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85152631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13336 + ... + 18658.

It is an arithmetic number, because the mean of its divisors is an integer number (11284218).

Almost surely, 2^85152031 is an apocalyptic number.

85152031 is a deficient number, since it is larger than the sum of its proper divisors (5121713).

85152031 is a wasteful number, since it uses less digits than its factorization.

85152031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6281.

The product of its (nonzero) digits is 1200, while the sum is 25.

The square root of 85152031 is about 9227.7858124254. The cubic root of 85152031 is about 439.9449500687.

Adding to 85152031 its reverse (13025158), we get a palindrome (98177189).

The spelling of 85152031 in words is "eighty-five million, one hundred fifty-two thousand, thirty-one".