1294431 has 12 divisors (see below), whose sum is σ = 1834632. Its totient is φ = 811648.

The previous prime is 1294399. The next prime is 1294453. The reversal of 1294431 is 1344921.

It is not a de Polignac number, because 1294431 - 2⁵ = 1294399 is a prime.

It is a super-2 number, since 2×1294431² = 3351103227522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1294471) 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, 121 + ... + 1613.

It is an arithmetic number, because the mean of its divisors is an integer number (152886).

2^1294431 is an apocalyptic number.

1294431 is a deficient number, since it is larger than the sum of its proper divisors (540201).

1294431 is a wasteful number, since it uses less digits than its factorization.

1294431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1530 (or 1513 counting only the distinct ones).

The product of its digits is 864, while the sum is 24.

The square root of 1294431 is about 1137.7306359591. The cubic root of 1294431 is about 108.9832199290.

It can be divided in two parts, 129 and 4431, that added together give a triangular number (4560 = T₉₅).

The spelling of 1294431 in words is "one million, two hundred ninety-four thousand, four hundred thirty-one".