2020654531 has 4 divisors (see below), whose sum is σ = 2309319472. Its totient is φ = 1731989592.

The previous prime is 2020654529. The next prime is 2020654543. The reversal of 2020654531 is 1354560202.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1354560202 = 2 ⋅677280101.

It is a cyclic number.

It is not a de Polignac number, because 2020654531 - 2¹ = 2020654529 is a prime.

It is a super-2 number, since 2×2020654531² = 8166089467301659922, which contains 22 as substring.

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 2020654531.

It is not an unprimeable number, because it can be changed into a prime (2020654501) 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, 144332460 + ... + 144332473.

It is an arithmetic number, because the mean of its divisors is an integer number (577329868).

Almost surely, 2^2020654531 is an apocalyptic number.

2020654531 is a deficient number, since it is larger than the sum of its proper divisors (288664941).

2020654531 is an equidigital number, since it uses as much as digits as its factorization.

2020654531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288664940.

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 2020654531 is about 44951.6910805367. The cubic root of 2020654531 is about 1264.2433842990.

The spelling of 2020654531 in words is "two billion, twenty million, six hundred fifty-four thousand, five hundred thirty-one".