85148742 has 32 divisors (see below), whose sum is σ = 195369984. Its totient is φ = 24235200.

The previous prime is 85148711. The next prime is 85148743. The reversal of 85148742 is 24784158.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 85148742.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85148743) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7642 + ... + 15122.

It is an arithmetic number, because the mean of its divisors is an integer number (6105312).

Almost surely, 2^85148742 is an apocalyptic number.

85148742 is an abundant number, since it is smaller than the sum of its proper divisors (110221242).

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

85148742 is a wasteful number, since it uses less digits than its factorization.

85148742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7764.

The product of its digits is 71680, while the sum is 39.

The square root of 85148742 is about 9227.6075989392. The cubic root of 85148742 is about 439.9392856997.

The spelling of 85148742 in words is "eighty-five million, one hundred forty-eight thousand, seven hundred forty-two".