345140201 has 4 divisors (see below), whose sum is σ = 394445952. Its totient is φ = 295834452.

The previous prime is 345140189. The next prime is 345140203. The reversal of 345140201 is 102041543.

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, and also an emirpimes, since its reverse is a distinct semiprime: 102041543 = 3163 ⋅32261.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-345140201 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (345140203) 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, 24652865 + ... + 24652878.

It is an arithmetic number, because the mean of its divisors is an integer number (98611488).

Almost surely, 2^345140201 is an apocalyptic number.

It is an amenable number.

345140201 is a deficient number, since it is larger than the sum of its proper divisors (49305751).

345140201 is an equidigital number, since it uses as much as digits as its factorization.

345140201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49305750.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 345140201 is about 18577.9493217093. The cubic root of 345140201 is about 701.4529013579.

Adding to 345140201 its reverse (102041543), we get a palindrome (447181744).

The spelling of 345140201 in words is "three hundred forty-five million, one hundred forty thousand, two hundred one".