1273146973 has 16 divisors (see below), whose sum is σ = 1486045440. Its totient is φ = 1068103296.

The previous prime is 1273146971. The next prime is 1273146977. The reversal of 1273146973 is 3796413721.

It is a cyclic number.

It is not a de Polignac number, because 1273146973 - 2¹ = 1273146971 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1273146971) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 158961 + ... + 166777.

It is an arithmetic number, because the mean of its divisors is an integer number (92877840).

Almost surely, 2^1273146973 is an apocalyptic number.

It is an amenable number.

1273146973 is a deficient number, since it is larger than the sum of its proper divisors (212898467).

1273146973 is an equidigital number, since it uses as much as digits as its factorization.

1273146973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8316.

The product of its digits is 190512, while the sum is 43.

The square root of 1273146973 is about 35681.1851400707. The cubic root of 1273146973 is about 1083.8258722430.

The spelling of 1273146973 in words is "one billion, two hundred seventy-three million, one hundred forty-six thousand, nine hundred seventy-three".