1271402 has 8 divisors (see below), whose sum is σ = 2080512. Its totient is φ = 577900.

The previous prime is 1271401. The next prime is 1271419. The reversal of 1271402 is 2041721.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a plaindrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (1271401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28874 + ... + 28917.

It is an arithmetic number, because the mean of its divisors is an integer number (260064).

2^1271402 is an apocalyptic number.

1271402 is a deficient number, since it is larger than the sum of its proper divisors (809110).

1271402 is a wasteful number, since it uses less digits than its factorization.

1271402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57804.

The product of its (nonzero) digits is 112, while the sum is 17.

The square root of 1271402 is about 1127.5646322939. The cubic root of 1271402 is about 108.3330482570. Note that the first 3 decimals are identical.

The spelling of 1271402 in words is "one million, two hundred seventy-one thousand, four hundred two".