920983545 has 12 divisors (see below), whose sum is σ = 1596371556. Its totient is φ = 491191200.

The previous prime is 920983519. The next prime is 920983573. The reversal of 920983545 is 545389029.

920983545 is a `hidden beast` number, since 9 + 20 + 9 + 83 + 545 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 356303376 + 564680169 = 18876^2 + 23763^2 .

It is not a de Polignac number, because 920983545 - 2⁸ = 920983289 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 20466301 = 920983545 / (9 + 2 + 0 + 9 + 8 + 3 + 5 + 4 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 920983545.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10233106 + ... + 10233195.

It is an arithmetic number, because the mean of its divisors is an integer number (133030963).

Almost surely, 2^920983545 is an apocalyptic number.

It is an amenable number.

920983545 is a deficient number, since it is larger than the sum of its proper divisors (675388011).

920983545 is a wasteful number, since it uses less digits than its factorization.

920983545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20466312 (or 20466309 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 45.

The square root of 920983545 is about 30347.7107044337. The cubic root of 920983545 is about 972.9352915065.

The spelling of 920983545 in words is "nine hundred twenty million, nine hundred eighty-three thousand, five hundred forty-five".