1243429 has 4 divisors (see below), whose sum is σ = 1356480. Its totient is φ = 1130380.

The previous prime is 1243427. The next prime is 1243439. The reversal of 1243429 is 9243421.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1243429 - 2¹ = 1243427 is a prime.

It is a super-2 number, since 2×1243429² = 3092231356082, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1243421) 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, 56509 + ... + 56530.

It is an arithmetic number, because the mean of its divisors is an integer number (339120).

2^1243429 is an apocalyptic number.

It is an amenable number.

1243429 is a deficient number, since it is larger than the sum of its proper divisors (113051).

1243429 is a wasteful number, since it uses less digits than its factorization.

1243429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113050.

The product of its digits is 1728, while the sum is 25.

The square root of 1243429 is about 1115.0914760682. The cubic root of 1243429 is about 107.5326455746.

It can be divided in two parts, 124 and 3429, that added together give a palindrome (3553).

The spelling of 1243429 in words is "one million, two hundred forty-three thousand, four hundred twenty-nine".