2020154534 has 12 divisors (see below), whose sum is σ = 3102346836. Its totient is φ = 986585292.

The previous prime is 2020154533. The next prime is 2020154567. The reversal of 2020154534 is 4354510202.

It is a happy 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 (2020154531) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 269444 + ... + 276839.

It is an arithmetic number, because the mean of its divisors is an integer number (258528903).

Almost surely, 2^2020154534 is an apocalyptic number.

2020154534 is a deficient number, since it is larger than the sum of its proper divisors (1082192302).

2020154534 is an equidigital number, since it uses as much as digits as its factorization.

2020154534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 546371 (or 546328 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 2020154534 is about 44946.1292437958. The cubic root of 2020154534 is about 1264.1390996007.

Adding to 2020154534 its reverse (4354510202), we get a palindrome (6374664736).

The spelling of 2020154534 in words is "two billion, twenty million, one hundred fifty-four thousand, five hundred thirty-four".