1000045973 has 2 divisors, whose sum is σ = 1000045974. Its totient is φ = 1000045972.

The previous prime is 1000045909. The next prime is 1000046011. The reversal of 1000045973 is 3795400001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 693900964 + 306145009 = 26342^2 + 17497^2 .

It is a cyclic number.

It is not a de Polignac number, because 1000045973 - 2⁶ = 1000045909 is a prime.

It is a super-2 number, since 2×1000045973² = 2000183896227033458, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1000005973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500022986 + 500022987.

It is an arithmetic number, because the mean of its divisors is an integer number (500022987).

Almost surely, 2^1000045973 is an apocalyptic number.

It is an amenable number.

1000045973 is a deficient number, since it is larger than the sum of its proper divisors (1).

1000045973 is an equidigital number, since it uses as much as digits as its factorization.

1000045973 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3780, while the sum is 29.

The square root of 1000045973 is about 31623.5034902839. The cubic root of 1000045973 is about 1000.0153240985.

Adding to 1000045973 its reverse (3795400001), we get a palindrome (4795445974).

The spelling of 1000045973 in words is "one billion, forty-five thousand, nine hundred seventy-three".