345256801 has 4 divisors (see below), whose sum is σ = 345920004. Its totient is φ = 344593600.

The previous prime is 345256799. The next prime is 345256817. The reversal of 345256801 is 108652543.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 95648400 + 249608401 = 9780^2 + 15799^2 .

It is a cyclic number.

It is not a de Polignac number, because 345256801 - 2¹ = 345256799 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (345256831) 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, 330820 + ... + 331861.

It is an arithmetic number, because the mean of its divisors is an integer number (86480001).

Almost surely, 2^345256801 is an apocalyptic number.

It is an amenable number.

345256801 is a deficient number, since it is larger than the sum of its proper divisors (663203).

345256801 is an equidigital number, since it uses as much as digits as its factorization.

345256801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 663202.

The product of its (nonzero) digits is 28800, while the sum is 34.

The square root of 345256801 is about 18581.0871856304. The cubic root of 345256801 is about 701.5318839466.

The spelling of 345256801 in words is "three hundred forty-five million, two hundred fifty-six thousand, eight hundred one".