1073020545 has 12 divisors (see below), whose sum is σ = 1859902356. Its totient is φ = 572277600.

The previous prime is 1073020519. The next prime is 1073020547. The reversal of 1073020545 is 5450203701.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 665020944 + 407999601 = 25788^2 + 20199^2 .

It is not a de Polignac number, because 1073020545 - 2⁵ = 1073020513 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1073020547) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11922406 + ... + 11922495.

It is an arithmetic number, because the mean of its divisors is an integer number (154991863).

Almost surely, 2^1073020545 is an apocalyptic number.

1073020545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1073020545 is a deficient number, since it is larger than the sum of its proper divisors (786881811).

1073020545 is a wasteful number, since it uses less digits than its factorization.

1073020545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23844912 (or 23844909 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The square root of 1073020545 is about 32756.9923069869. The cubic root of 1073020545 is about 1023.7706602207.

The spelling of 1073020545 in words is "one billion, seventy-three million, twenty thousand, five hundred forty-five".