1879623145 has 4 divisors (see below), whose sum is σ = 2255547780. Its totient is φ = 1503698512.

The previous prime is 1879623133. The next prime is 1879623167. The reversal of 1879623145 is 5413269781.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5413269781 = 647 ⋅8366723.

It can be written as a sum of positive squares in 2 ways, for example, as 1289959056 + 589664089 = 35916^2 + 24283^2 .

It is a cyclic number.

It is not a de Polignac number, because 1879623145 - 2⁵ = 1879623113 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1879623095 and 1879623104.

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 3 ways as a sum of consecutive naturals, for example, 187962310 + ... + 187962319.

It is an arithmetic number, because the mean of its divisors is an integer number (563886945).

Almost surely, 2^1879623145 is an apocalyptic number.

It is an amenable number.

1879623145 is a deficient number, since it is larger than the sum of its proper divisors (375924635).

1879623145 is an equidigital number, since it uses as much as digits as its factorization.

1879623145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375924634.

The product of its digits is 362880, while the sum is 46.

The square root of 1879623145 is about 43354.6208033238. The cubic root of 1879623145 is about 1234.1186858675.

The spelling of 1879623145 in words is "one billion, eight hundred seventy-nine million, six hundred twenty-three thousand, one hundred forty-five".