1271452406 has 16 divisors (see below), whose sum is σ = 2307846816. Its totient is φ = 512854656.

The previous prime is 1271452387. The next prime is 1271452421. The reversal of 1271452406 is 6042541721.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2670881 + ... + 2671356.

It is an arithmetic number, because the mean of its divisors is an integer number (144240426).

Almost surely, 2^1271452406 is an apocalyptic number.

1271452406 is a deficient number, since it is larger than the sum of its proper divisors (1036394410).

1271452406 is a wasteful number, since it uses less digits than its factorization.

1271452406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5342263.

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 1271452406 is about 35657.4312871805. The cubic root of 1271452406 is about 1083.3447989529.

The spelling of 1271452406 in words is "one billion, two hundred seventy-one million, four hundred fifty-two thousand, four hundred six".