973153561 has 2 divisors, whose sum is σ = 973153562. Its totient is φ = 973153560.

The previous prime is 973153541. The next prime is 973153603. The reversal of 973153561 is 165351379.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 797723536 + 175430025 = 28244^2 + 13245^2 .

It is an emirp because it is prime and its reverse (165351379) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-973153561 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (973153541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 486576780 + 486576781.

It is an arithmetic number, because the mean of its divisors is an integer number (486576781).

Almost surely, 2^973153561 is an apocalyptic number.

It is an amenable number.

973153561 is a deficient number, since it is larger than the sum of its proper divisors (1).

973153561 is an equidigital number, since it uses as much as digits as its factorization.

973153561 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 85050, while the sum is 40.

The square root of 973153561 is about 31195.4092936765. The cubic root of 973153561 is about 990.9698895524.

The spelling of 973153561 in words is "nine hundred seventy-three million, one hundred fifty-three thousand, five hundred sixty-one".