1270842459 has 4 divisors (see below), whose sum is σ = 1694456616. Its totient is φ = 847228304.

The previous prime is 1270842439. The next prime is 1270842467. The reversal of 1270842459 is 9542480721.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9542480721 = 3 ⋅3180826907.

It is a cyclic number.

It is not a de Polignac number, because 1270842459 - 2¹³ = 1270834267 is a prime.

It is a super-3 number, since 3×1270842459³ (a number of 28 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1270842459.

It is not an unprimeable number, because it can be changed into a prime (1270842439) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 211807074 + ... + 211807079.

It is an arithmetic number, because the mean of its divisors is an integer number (423614154).

Almost surely, 2^1270842459 is an apocalyptic number.

1270842459 is a deficient number, since it is larger than the sum of its proper divisors (423614157).

1270842459 is an equidigital number, since it uses as much as digits as its factorization.

1270842459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423614156.

The product of its (nonzero) digits is 161280, while the sum is 42.

The square root of 1270842459 is about 35648.8773876542. The cubic root of 1270842459 is about 1083.1715355261.

The spelling of 1270842459 in words is "one billion, two hundred seventy million, eight hundred forty-two thousand, four hundred fifty-nine".