354223145 has 16 divisors (see below), whose sum is σ = 430874640. Its totient is φ = 279527424.

The previous prime is 354223141. The next prime is 354223151. The reversal of 354223145 is 541322453.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 37810201 + 316412944 = 6149^2 + 17788^2 .

It is a cyclic number.

It is not a de Polignac number, because 354223145 - 2² = 354223141 is a prime.

It is a super-3 number, since 3×354223145³ (a number of 27 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (354223141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 170171 + ... + 172239.

It is an arithmetic number, because the mean of its divisors is an integer number (26929665).

Almost surely, 2^354223145 is an apocalyptic number.

It is an amenable number.

354223145 is a deficient number, since it is larger than the sum of its proper divisors (76651495).

354223145 is a wasteful number, since it uses less digits than its factorization.

354223145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2524.

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

The square root of 354223145 is about 18820.8167994909. The cubic root of 354223145 is about 707.5530024762.

Adding to 354223145 its reverse (541322453), we get a palindrome (895545598).

The spelling of 354223145 in words is "three hundred fifty-four million, two hundred twenty-three thousand, one hundred forty-five".