2145106379 has 4 divisors (see below), whose sum is σ = 2310114576. Its totient is φ = 1980098184.

The previous prime is 2145106373. The next prime is 2145106399. The reversal of 2145106379 is 9736015412.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2145106379 - 2²⁴ = 2128329163 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2145106373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82504079 + ... + 82504104.

It is an arithmetic number, because the mean of its divisors is an integer number (577528644).

Almost surely, 2^2145106379 is an apocalyptic number.

2145106379 is a deficient number, since it is larger than the sum of its proper divisors (165008197).

2145106379 is a wasteful number, since it uses less digits than its factorization.

2145106379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165008196.

The product of its (nonzero) digits is 45360, while the sum is 38.

The square root of 2145106379 is about 46315.2931438418. The cubic root of 2145106379 is about 1289.6829096644.

The spelling of 2145106379 in words is "two billion, one hundred forty-five million, one hundred six thousand, three hundred seventy-nine".