2078531541 has 6 divisors (see below), whose sum is σ = 3002323350. Its totient is φ = 1385687688.

The previous prime is 2078531489. The next prime is 2078531557. The reversal of 2078531541 is 1451358702.

2078531541 is a `hidden beast` number, since 2 + 0 + 7 + 85 + 31 + 541 = 666.

It can be written as a sum of positive squares in only one way, i.e., 2013406641 + 65124900 = 44871^2 + 8070^2 .

It is not a de Polignac number, because 2078531541 - 2⁹ = 2078531029 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2078531496 and 2078531505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2078531341) 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 5 ways as a sum of consecutive naturals, for example, 115473966 + ... + 115473983.

It is an arithmetic number, because the mean of its divisors is an integer number (500387225).

Almost surely, 2^2078531541 is an apocalyptic number.

It is an amenable number.

2078531541 is a deficient number, since it is larger than the sum of its proper divisors (923791809).

2078531541 is a wasteful number, since it uses less digits than its factorization.

2078531541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230947955 (or 230947952 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 36.

The square root of 2078531541 is about 45590.9151147463. The cubic root of 2078531541 is about 1276.2003901450.

It can be divided in two parts, 20785 and 31541, that added together give a triangular number (52326 = T₃₂₃).

The spelling of 2078531541 in words is "two billion, seventy-eight million, five hundred thirty-one thousand, five hundred forty-one".