345815401 has 4 divisors (see below), whose sum is σ = 357740100. Its totient is φ = 333890704.

The previous prime is 345815389. The next prime is 345815429. The reversal of 345815401 is 104518543.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 104518543 = 2003 ⋅52181.

It can be written as a sum of positive squares in 2 ways, for example, as 280529001 + 65286400 = 16749^2 + 8080^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-345815401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (345818401) 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, 5962306 + ... + 5962363.

It is an arithmetic number, because the mean of its divisors is an integer number (89435025).

Almost surely, 2^345815401 is an apocalyptic number.

It is an amenable number.

345815401 is a deficient number, since it is larger than the sum of its proper divisors (11924699).

345815401 is a wasteful number, since it uses less digits than its factorization.

345815401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11924698.

The product of its (nonzero) digits is 9600, while the sum is 31.

The square root of 345815401 is about 18596.1125238583. The cubic root of 345815401 is about 701.9100223419.

The spelling of 345815401 in words is "three hundred forty-five million, eight hundred fifteen thousand, four hundred one".