346353121 has 4 divisors (see below), whose sum is σ = 366726852. Its totient is φ = 325979392.

The previous prime is 346353103. The next prime is 346353131. The reversal of 346353121 is 121353643.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 121353643 = 1307 ⋅92849.

It can be written as a sum of positive squares in 2 ways, for example, as 215502400 + 130850721 = 14680^2 + 11439^2 .

It is a cyclic number.

It is not a de Polignac number, because 346353121 - 2²³ = 337964513 is a prime.

It is a super-3 number, since 3×346353121³ (a number of 27 digits) contains 333 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 346353121.

It is not an unprimeable number, because it can be changed into a prime (346353101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10186840 + ... + 10186873.

It is an arithmetic number, because the mean of its divisors is an integer number (91681713).

Almost surely, 2^346353121 is an apocalyptic number.

It is an amenable number.

346353121 is a deficient number, since it is larger than the sum of its proper divisors (20373731).

346353121 is a wasteful number, since it uses less digits than its factorization.

346353121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20373730.

The product of its digits is 6480, while the sum is 28.

The square root of 346353121 is about 18610.5647684319. The cubic root of 346353121 is about 702.2736417742.

The spelling of 346353121 in words is "three hundred forty-six million, three hundred fifty-three thousand, one hundred twenty-one".