2020154531 has 2 divisors, whose sum is σ = 2020154532. Its totient is φ = 2020154530.

The previous prime is 2020154483. The next prime is 2020154533. The reversal of 2020154531 is 1354510202.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2020154531 - 2¹⁰ = 2020153507 is a prime.

It is a super-2 number, since 2×2020154531² = 8162048658239659922, which contains 22 as substring.

Together with 2020154533, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 2020154497 and 2020154506.

It is not a weakly prime, because it can be changed into another prime (2020154533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010077265 + 1010077266.

It is an arithmetic number, because the mean of its divisors is an integer number (1010077266).

Almost surely, 2^2020154531 is an apocalyptic number.

2020154531 is a deficient number, since it is larger than the sum of its proper divisors (1).

2020154531 is an equidigital number, since it uses as much as digits as its factorization.

2020154531 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 2020154531 is about 44946.1292104226. The cubic root of 2020154531 is about 1264.1390989750.

Adding to 2020154531 its reverse (1354510202), we get a palindrome (3374664733).

The spelling of 2020154531 in words is "two billion, twenty million, one hundred fifty-four thousand, five hundred thirty-one".