2145174834 has 32 divisors (see below), whose sum is σ = 4841778240. Its totient is φ = 627636800.

The previous prime is 2145174793. The next prime is 2145174851. The reversal of 2145174834 is 4384715412.

It is a junction number, because it is equal to n+sod(n) for n = 2145174792 and 2145174801.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 558477 + ... + 562304.

It is an arithmetic number, because the mean of its divisors is an integer number (151305570).

Almost surely, 2^2145174834 is an apocalyptic number.

2145174834 is an abundant number, since it is smaller than the sum of its proper divisors (2696603406).

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

2145174834 is a wasteful number, since it uses less digits than its factorization.

2145174834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1120826.

The product of its digits is 107520, while the sum is 39.

The square root of 2145174834 is about 46316.0321487063. The cubic root of 2145174834 is about 1289.6966283787.

The spelling of 2145174834 in words is "two billion, one hundred forty-five million, one hundred seventy-four thousand, eight hundred thirty-four".