1274139 has 12 divisors (see below), whose sum is σ = 1868776. Its totient is φ = 836352.

The previous prime is 1274137. The next prime is 1274149. The reversal of 1274139 is 9314721.

It is not a de Polignac number, because 1274139 - 2¹ = 1274137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1274137) 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 11 ways as a sum of consecutive naturals, for example, 454 + ... + 1659.

2^1274139 is an apocalyptic number.

1274139 is a deficient number, since it is larger than the sum of its proper divisors (594637).

1274139 is a wasteful number, since it uses less digits than its factorization.

1274139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2186 (or 2183 counting only the distinct ones).

The product of its digits is 1512, while the sum is 27.

The square root of 1274139 is about 1128.7776574685. Note that the first 3 decimals coincide. The cubic root of 1274139 is about 108.4107302278.

The spelling of 1274139 in words is "one million, two hundred seventy-four thousand, one hundred thirty-nine".