1270349973 has 20 divisors (see below), whose sum is σ = 2009313900. Its totient is φ = 797081472.

The previous prime is 1270349947. The next prime is 1270349987. The reversal of 1270349973 is 3799430721.

It can be written as a sum of positive squares in 2 ways, for example, as 764909649 + 505440324 = 27657^2 + 22482^2 .

It is not a de Polignac number, because 1270349973 - 2²⁴ = 1253572757 is a prime.

It is a super-2 number, since 2×1270349973² = 3227578107802201458, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1270349923) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 459898 + ... + 462651.

It is an arithmetic number, because the mean of its divisors is an integer number (100465695).

Almost surely, 2^1270349973 is an apocalyptic number.

It is an amenable number.

1270349973 is a deficient number, since it is larger than the sum of its proper divisors (738963927).

1270349973 is an equidigital number, since it uses as much as digits as its factorization.

1270349973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 922578 (or 922569 counting only the distinct ones).

The product of its (nonzero) digits is 285768, while the sum is 45.

The square root of 1270349973 is about 35641.9692637767. The cubic root of 1270349973 is about 1083.0315979762.

The spelling of 1270349973 in words is "one billion, two hundred seventy million, three hundred forty-nine thousand, nine hundred seventy-three".