345558401 has 2 divisors, whose sum is σ = 345558402. Its totient is φ = 345558400.

The previous prime is 345558397. The next prime is 345558419. The reversal of 345558401 is 104855543.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 299982400 + 45576001 = 17320^2 + 6751^2 .

It is a cyclic number.

It is not a de Polignac number, because 345558401 - 2² = 345558397 is a prime.

It is not a weakly prime, because it can be changed into another prime (345552401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172779200 + 172779201.

It is an arithmetic number, because the mean of its divisors is an integer number (172779201).

Almost surely, 2^345558401 is an apocalyptic number.

It is an amenable number.

345558401 is a deficient number, since it is larger than the sum of its proper divisors (1).

345558401 is an equidigital number, since it uses as much as digits as its factorization.

345558401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48000, while the sum is 35.

The square root of 345558401 is about 18589.2011931659. The cubic root of 345558401 is about 701.7360995103.

The spelling of 345558401 in words is "three hundred forty-five million, five hundred fifty-eight thousand, four hundred one".