1271487 has 16 divisors (see below), whose sum is σ = 1953792. Its totient is φ = 720480.

The previous prime is 1271483. The next prime is 1271503. The reversal of 1271487 is 7841721.

It is not a de Polignac number, because 1271487 - 2² = 1271483 is a prime.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1271483) 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, 3853 + ... + 4169.

It is an arithmetic number, because the mean of its divisors is an integer number (122112).

2^1271487 is an apocalyptic number.

1271487 is a deficient number, since it is larger than the sum of its proper divisors (682305).

1271487 is a wasteful number, since it uses less digits than its factorization.

1271487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 518.

The product of its digits is 3136, while the sum is 30.

The square root of 1271487 is about 1127.6023235166. The cubic root of 1271487 is about 108.3354624171.

The spelling of 1271487 in words is "one million, two hundred seventy-one thousand, four hundred eighty-seven".