345606121 has 4 divisors (see below), whose sum is σ = 394978432. Its totient is φ = 296233812.

The previous prime is 345606103. The next prime is 345606133. The reversal of 345606121 is 121606543.

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 not a de Polignac number, because 345606121 - 2¹³ = 345597929 is a prime.

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 345606121.

It is not an unprimeable number, because it can be changed into a prime (345606161) 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, 24686145 + ... + 24686158.

It is an arithmetic number, because the mean of its divisors is an integer number (98744608).

Almost surely, 2^345606121 is an apocalyptic number.

It is an amenable number.

345606121 is a deficient number, since it is larger than the sum of its proper divisors (49372311).

345606121 is an equidigital number, since it uses as much as digits as its factorization.

345606121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49372310.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 345606121 is about 18590.4846897546. The cubic root of 345606121 is about 701.7684001819.

The spelling of 345606121 in words is "three hundred forty-five million, six hundred six thousand, one hundred twenty-one".