85151740 has 12 divisors (see below), whose sum is σ = 178818696. Its totient is φ = 34060688.

The previous prime is 85151701. The next prime is 85151753. The reversal of 85151740 is 4715158.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2128774 + ... + 2128813.

It is an arithmetic number, because the mean of its divisors is an integer number (14901558).

Almost surely, 2^85151740 is an apocalyptic number.

It is an amenable number.

85151740 is an abundant number, since it is smaller than the sum of its proper divisors (93666956).

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

85151740 is a wasteful number, since it uses less digits than its factorization.

85151740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4257596 (or 4257594 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 31.

The square root of 85151740 is about 9227.7700448158. The cubic root of 85151740 is about 439.9444489097.

Adding to 85151740 its reverse (4715158), we get a palindrome (89866898).

The spelling of 85151740 in words is "eighty-five million, one hundred fifty-one thousand, seven hundred forty".