345121351 has 8 divisors (see below), whose sum is σ = 347321520. Its totient is φ = 342928512.

The previous prime is 345121349. The next prime is 345121391. The reversal of 345121351 is 153121543.

It is a happy number.

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 345121351 - 2¹ = 345121349 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 (345121321) 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 7 ways as a sum of consecutive naturals, for example, 114996 + ... + 117958.

It is an arithmetic number, because the mean of its divisors is an integer number (43415190).

Almost surely, 2^345121351 is an apocalyptic number.

345121351 is a deficient number, since it is larger than the sum of its proper divisors (2200169).

345121351 is a wasteful number, since it uses less digits than its factorization.

345121351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3665.

The product of its digits is 1800, while the sum is 25.

The square root of 345121351 is about 18577.4419929117. The cubic root of 345121351 is about 701.4401310616.

Adding to 345121351 its reverse (153121543), we get a palindrome (498242894).

The spelling of 345121351 in words is "three hundred forty-five million, one hundred twenty-one thousand, three hundred fifty-one".