2026945139 has 12 divisors (see below), whose sum is σ = 2155714704. Its totient is φ = 1905477504.

The previous prime is 2026945087. The next prime is 2026945243. The reversal of 2026945139 is 9315496202.

It is a de Polignac number, because none of the positive numbers 2^k-2026945139 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2026945096 and 2026945105.

It is not an unprimeable number, because it can be changed into a prime (2026945339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 275837 + ... + 283089.

It is an arithmetic number, because the mean of its divisors is an integer number (179642892).

Almost surely, 2^2026945139 is an apocalyptic number.

2026945139 is a deficient number, since it is larger than the sum of its proper divisors (128769565).

2026945139 is an equidigital number, since it uses as much as digits as its factorization.

2026945139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8254 (or 8237 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 41.

The square root of 2026945139 is about 45021.6074679703. The cubic root of 2026945139 is about 1265.5539532004.

The spelling of 2026945139 in words is "two billion, twenty-six million, nine hundred forty-five thousand, one hundred thirty-nine".