1461309973 has 2 divisors, whose sum is σ = 1461309974. Its totient is φ = 1461309972.

The previous prime is 1461309959. The next prime is 1461309977. The reversal of 1461309973 is 3799031641.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1460539089 + 770884 = 38217^2 + 878^2 .

It is a cyclic number.

It is not a de Polignac number, because 1461309973 - 2⁹ = 1461309461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1461309977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 730654986 + 730654987.

It is an arithmetic number, because the mean of its divisors is an integer number (730654987).

Almost surely, 2^1461309973 is an apocalyptic number.

It is an amenable number.

1461309973 is a deficient number, since it is larger than the sum of its proper divisors (1).

1461309973 is an equidigital number, since it uses as much as digits as its factorization.

1461309973 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 122472, while the sum is 43.

The square root of 1461309973 is about 38227.0842858830. The cubic root of 1461309973 is about 1134.7863837536.

The spelling of 1461309973 in words is "one billion, four hundred sixty-one million, three hundred nine thousand, nine hundred seventy-three".