1270861403 has 12 divisors (see below), whose sum is σ = 1529328240. Its totient is φ = 1051746192.

The previous prime is 1270861391. The next prime is 1270861409. The reversal of 1270861403 is 3041680721.

It is not a de Polignac number, because 1270861403 - 2¹⁴ = 1270845019 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1270861403.

It is not an unprimeable number, because it can be changed into a prime (1270861409) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 445751 + ... + 448592.

It is an arithmetic number, because the mean of its divisors is an integer number (127444020).

Almost surely, 2^1270861403 is an apocalyptic number.

1270861403 is a deficient number, since it is larger than the sum of its proper divisors (258466837).

1270861403 is an equidigital number, since it uses as much as digits as its factorization.

1270861403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 894386 (or 894379 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 1270861403 is about 35649.1430892806. The cubic root of 1270861403 is about 1083.1769176513.

The spelling of 1270861403 in words is "one billion, two hundred seventy million, eight hundred sixty-one thousand, four hundred three".