342121253 has 4 divisors (see below), whose sum is σ = 342367200. Its totient is φ = 341875308.

The previous prime is 342121249. The next prime is 342121279. The reversal of 342121253 is 352121243.

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 342121253 - 2² = 342121249 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (342121223) 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, 120875 + ... + 123672.

It is an arithmetic number, because the mean of its divisors is an integer number (85591800).

Almost surely, 2^342121253 is an apocalyptic number.

It is an amenable number.

342121253 is a deficient number, since it is larger than the sum of its proper divisors (245947).

342121253 is a wasteful number, since it uses less digits than its factorization.

342121253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245946.

The product of its digits is 1440, while the sum is 23.

The square root of 342121253 is about 18496.5200240478. The cubic root of 342121253 is about 699.4017016982.

Adding to 342121253 its reverse (352121243), we get a palindrome (694242496).

The spelling of 342121253 in words is "three hundred forty-two million, one hundred twenty-one thousand, two hundred fifty-three".