2945408139 has 12 divisors (see below), whose sum is σ = 4478398600. Its totient is φ = 1860257664.

The previous prime is 2945408107. The next prime is 2945408149. The reversal of 2945408139 is 9318045492.

2945408139 is a `hidden beast` number, since 2 + 94 + 540 + 8 + 13 + 9 = 666.

It is not a de Polignac number, because 2945408139 - 2⁵ = 2945408107 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2945408094 and 2945408103.

It is not an unprimeable number, because it can be changed into a prime (2945408149) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 8612134 + ... + 8612475.

Almost surely, 2^2945408139 is an apocalyptic number.

2945408139 is a deficient number, since it is larger than the sum of its proper divisors (1532990461).

2945408139 is a wasteful number, since it uses less digits than its factorization.

2945408139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17224634 (or 17224631 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The square root of 2945408139 is about 54271.6144867646. The cubic root of 2945408139 is about 1433.4476187522.

The spelling of 2945408139 in words is "two billion, nine hundred forty-five million, four hundred eight thousand, one hundred thirty-nine".