85151838 has 16 divisors (see below), whose sum is σ = 172060560. Its totient is φ = 28091136.

The previous prime is 85151821. The next prime is 85151839. The reversal of 85151838 is 83815158.

It is a junction number, because it is equal to n+sod(n) for n = 85151796 and 85151805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85151839) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72573 + ... + 73736.

It is an arithmetic number, because the mean of its divisors is an integer number (10753785).

Almost surely, 2^85151838 is an apocalyptic number.

85151838 is an abundant number, since it is smaller than the sum of its proper divisors (86908722).

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

85151838 is a wasteful number, since it uses less digits than its factorization.

85151838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146411.

The product of its digits is 38400, while the sum is 39.

The square root of 85151838 is about 9227.7753548729. The cubic root of 85151838 is about 439.9446176850.

The spelling of 85151838 in words is "eighty-five million, one hundred fifty-one thousand, eight hundred thirty-eight".