1073870645 has 16 divisors (see below), whose sum is σ = 1296511920. Its totient is φ = 853868544.

The previous prime is 1073870641. The next prime is 1073870689. The reversal of 1073870645 is 5460783701.

It can be written as a sum of positive squares in 8 ways, for example, as 525280561 + 548590084 = 22919^2 + 23422^2 .

It is a cyclic number.

It is not a de Polignac number, because 1073870645 - 2² = 1073870641 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1073870641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1039049 + ... + 1040081.

It is an arithmetic number, because the mean of its divisors is an integer number (81031995).

Almost surely, 2^1073870645 is an apocalyptic number.

It is an amenable number.

1073870645 is a deficient number, since it is larger than the sum of its proper divisors (222641275).

1073870645 is a wasteful number, since it uses less digits than its factorization.

1073870645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2104.

The product of its (nonzero) digits is 141120, while the sum is 41.

The square root of 1073870645 is about 32769.9655935126. The cubic root of 1073870645 is about 1024.0409494555.

The spelling of 1073870645 in words is "one billion, seventy-three million, eight hundred seventy thousand, six hundred forty-five".