85181502 has 24 divisors (see below), whose sum is σ = 198178056. Its totient is φ = 24337488.

The previous prime is 85181501. The next prime is 85181519. The reversal of 85181502 is 20518158.

It is a self number, because there is not a number n which added to its sum of digits gives 85181502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85181501) 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 11 ways as a sum of consecutive naturals, for example, 144573 + ... + 145160.

It is an arithmetic number, because the mean of its divisors is an integer number (8257419).

Almost surely, 2^85181502 is an apocalyptic number.

85181502 is an abundant number, since it is smaller than the sum of its proper divisors (112996554).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85181502 is a wasteful number, since it uses less digits than its factorization.

85181502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289752 (or 289745 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 30.

The square root of 85181502 is about 9229.3825362264. The cubic root of 85181502 is about 439.9956989938.

The spelling of 85181502 in words is "eighty-five million, one hundred eighty-one thousand, five hundred two".