2070139061 has 4 divisors (see below), whose sum is σ = 2079024012. Its totient is φ = 2061254112.

The previous prime is 2070139039. The next prime is 2070139063. The reversal of 2070139061 is 1609310702.

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

It can be written as a sum of positive squares in 2 ways, for example, as 942858436 + 1127280625 = 30706^2 + 33575^2 .

It is a cyclic number.

It is not a de Polignac number, because 2070139061 - 2²² = 2065944757 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2070139063) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4442126 + ... + 4442591.

It is an arithmetic number, because the mean of its divisors is an integer number (519756003).

Almost surely, 2^2070139061 is an apocalyptic number.

It is an amenable number.

2070139061 is a deficient number, since it is larger than the sum of its proper divisors (8884951).

2070139061 is an equidigital number, since it uses as much as digits as its factorization.

2070139061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8884950.

The product of its (nonzero) digits is 2268, while the sum is 29.

The square root of 2070139061 is about 45498.7808737773. The cubic root of 2070139061 is about 1274.4804364672.

Adding to 2070139061 its reverse (1609310702), we get a palindrome (3679449763).

The spelling of 2070139061 in words is "two billion, seventy million, one hundred thirty-nine thousand, sixty-one".