85820154 has 16 divisors (see below), whose sum is σ = 196160448. Its totient is φ = 24520032.

The previous prime is 85820101. The next prime is 85820171. The reversal of 85820154 is 45102858.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1021627 + ... + 1021710.

It is an arithmetic number, because the mean of its divisors is an integer number (12260028).

Almost surely, 2^85820154 is an apocalyptic number.

85820154 is an abundant number, since it is smaller than the sum of its proper divisors (110340294).

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

85820154 is a wasteful number, since it uses less digits than its factorization.

85820154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2043349.

The product of its (nonzero) digits is 12800, while the sum is 33.

The square root of 85820154 is about 9263.9167742376. The cubic root of 85820154 is about 441.0925911477.

It can be divided in two parts, 858 and 20154, that added together give a palindrome (21012).

The spelling of 85820154 in words is "eighty-five million, eight hundred twenty thousand, one hundred fifty-four".