84145030 has 16 divisors (see below), whose sum is σ = 155555280. Its totient is φ = 32748192.

The previous prime is 84145027. The next prime is 84145049. The reversal of 84145030 is 3054148.

It is a super-3 number, since 3×84145030³ (a number of 25 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 84144986 and 84145004.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 113340 + ... + 114079.

It is an arithmetic number, because the mean of its divisors is an integer number (9722205).

Almost surely, 2^84145030 is an apocalyptic number.

84145030 is a deficient number, since it is larger than the sum of its proper divisors (71410250).

84145030 is a wasteful number, since it uses less digits than its factorization.

84145030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227463.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 84145030 is about 9173.0600128856. The cubic root of 84145030 is about 438.2038173481.

Adding to 84145030 its reverse (3054148), we get a palindrome (87199178).

The spelling of 84145030 in words is "eighty-four million, one hundred forty-five thousand, thirty".