1274143 has 4 divisors (see below), whose sum is σ = 1372168. Its totient is φ = 1176120.

The previous prime is 1274137. The next prime is 1274149. The reversal of 1274143 is 3414721.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (1274137) and next prime (1274149).

It is a cyclic number.

It is not a de Polignac number, because 1274143 - 2⁵ = 1274111 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

1274143 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1274149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48993 + ... + 49018.

It is an arithmetic number, because the mean of its divisors is an integer number (343042).

2^1274143 is an apocalyptic number.

1274143 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1274143 is a deficient number, since it is larger than the sum of its proper divisors (98025).

1274143 is an equidigital number, since it uses as much as digits as its factorization.

1274143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98024.

The product of its digits is 672, while the sum is 22.

The square root of 1274143 is about 1128.7794292952. The cubic root of 1274143 is about 108.4108436750.

Adding to 1274143 its reverse (3414721), we get a palindrome (4688864).

The spelling of 1274143 in words is "one million, two hundred seventy-four thousand, one hundred forty-three".