343422155 has 4 divisors (see below), whose sum is σ = 412106592. Its totient is φ = 274737720.

The previous prime is 343422143. The next prime is 343422181. The reversal of 343422155 is 551224343.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 551224343 = 67 ⋅8227229.

It is not a de Polignac number, because 343422155 - 2⁸ = 343421899 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34342211 + ... + 34342220.

It is an arithmetic number, because the mean of its divisors is an integer number (103026648).

Almost surely, 2^343422155 is an apocalyptic number.

343422155 is a deficient number, since it is larger than the sum of its proper divisors (68684437).

343422155 is an equidigital number, since it uses as much as digits as its factorization.

343422155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68684436.

The product of its digits is 14400, while the sum is 29.

The square root of 343422155 is about 18531.6527865164. The cubic root of 343422155 is about 700.2870625347.

Adding to 343422155 its reverse (551224343), we get a palindrome (894646498).

The spelling of 343422155 in words is "three hundred forty-three million, four hundred twenty-two thousand, one hundred fifty-five".