1000061473 has 2 divisors, whose sum is σ = 1000061474.
Its totient is φ = 1000061472.
The previous prime is 1000061471. The next prime is 1000061479. The reversal of 1000061473 is 3741600001.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 991494144 + 8567329 = 31488^2 + 2927^2
It is a cyclic number.
It is not a de Polignac number, because 1000061473 - 21 = 1000061471 is a prime.
Together with 1000061471, it forms a pair of twin primes.
It is not a weakly prime, because it can be changed into another prime (1000061471) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500030736 + 500030737.
It is an arithmetic number, because the mean of its divisors is an integer number (500030737).
Almost surely, 21000061473 is an apocalyptic number.
It is an amenable number.
1000061473 is a deficient number, since it is larger than the sum of its proper divisors (1).
1000061473 is an equidigital number, since it uses as much as digits as its factorization.
1000061473 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 504, while the sum is 22.
The square root of 1000061473 is about 31623.7485602197.
The cubic root of 1000061473 is about 1000.0204905801.
Adding to 1000061473 its reverse (3741600001), we get a palindrome (4741661474).
The spelling of 1000061473 in words is "one billion, sixty-one thousand, four hundred seventy-three".