1020534045 has 16 divisors (see below), whose sum is σ = 1633621632. Its totient is φ = 544029120.

The previous prime is 1020534019. The next prime is 1020534059. The reversal of 1020534045 is 5404350201.

It is not a de Polignac number, because 1020534045 - 2²⁴ = 1003756829 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19560 + ... + 49230.

It is an arithmetic number, because the mean of its divisors is an integer number (102101352).

Almost surely, 2^1020534045 is an apocalyptic number.

1020534045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1020534045 is a deficient number, since it is larger than the sum of its proper divisors (613087587).

1020534045 is a wasteful number, since it uses less digits than its factorization.

1020534045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31972.

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 1020534045 is about 31945.7985500441. The cubic root of 1020534045 is about 1006.7983592434.

Adding to 1020534045 its reverse (5404350201), we get a palindrome (6424884246).

The spelling of 1020534045 in words is "one billion, twenty million, five hundred thirty-four thousand, forty-five".