1242933 has 4 divisors (see below), whose sum is σ = 1657248. Its totient is φ = 828620.

The previous prime is 1242931. The next prime is 1242937. The reversal of 1242933 is 3392421.

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, and also an emirpimes, since its reverse is a distinct semiprime: 3392421 = 3 ⋅1130807.

It is a cyclic number.

It is not a de Polignac number, because 1242933 - 2¹ = 1242931 is a prime.

It is a super-4 number, since 4×1242933⁴ (a number of 25 digits) contains 4444 as substring.

It is a D-number.

It is a Curzon number.

1242933 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1242931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 207153 + ... + 207158.

It is an arithmetic number, because the mean of its divisors is an integer number (414312).

2^1242933 is an apocalyptic number.

It is an amenable number.

1242933 is a deficient number, since it is larger than the sum of its proper divisors (414315).

1242933 is an equidigital number, since it uses as much as digits as its factorization.

1242933 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 414314.

The product of its digits is 1296, while the sum is 24.

The square root of 1242933 is about 1114.8690506064. The cubic root of 1242933 is about 107.5183455260.

The spelling of 1242933 in words is "one million, two hundred forty-two thousand, nine hundred thirty-three".