2070487261 has 4 divisors (see below), whose sum is σ = 2073843612. Its totient is φ = 2067130912.

The previous prime is 2070487253. The next prime is 2070487267. The reversal of 2070487261 is 1627840702.

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 47196900 + 2023290361 = 6870^2 + 44981^2 .

It is a cyclic number.

It is not a de Polignac number, because 2070487261 - 2³ = 2070487253 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2070487261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2070487267) 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 3 ways as a sum of consecutive naturals, for example, 1677250 + ... + 1678483.

It is an arithmetic number, because the mean of its divisors is an integer number (518460903).

Almost surely, 2^2070487261 is an apocalyptic number.

It is an amenable number.

2070487261 is a deficient number, since it is larger than the sum of its proper divisors (3356351).

2070487261 is an equidigital number, since it uses as much as digits as its factorization.

2070487261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3356350.

The product of its (nonzero) digits is 37632, while the sum is 37.

The square root of 2070487261 is about 45502.6071890392. The cubic root of 2070487261 is about 1274.5518888666.

The spelling of 2070487261 in words is "two billion, seventy million, four hundred eighty-seven thousand, two hundred sixty-one".