253343431 has 8 divisors (see below), whose sum is σ = 280906128. Its totient is φ = 226536000.

The previous prime is 253343411. The next prime is 253343437. The reversal of 253343431 is 134343352.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 253343431 - 2⁷ = 253343303 is a prime.

It is a super-2 number, since 2×253343431² = 128365788061703522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 253343431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253343437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 188110 + ... + 189451.

It is an arithmetic number, because the mean of its divisors is an integer number (35113266).

Almost surely, 2^253343431 is an apocalyptic number.

253343431 is a deficient number, since it is larger than the sum of its proper divisors (27562697).

253343431 is a wasteful number, since it uses less digits than its factorization.

253343431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 377633.

The product of its digits is 12960, while the sum is 28.

The square root of 253343431 is about 15916.7657204597. The cubic root of 253343431 is about 632.7564040355.

Adding to 253343431 its reverse (134343352), we get a palindrome (387686783).

The spelling of 253343431 in words is "two hundred fifty-three million, three hundred forty-three thousand, four hundred thirty-one".