354131321 has 4 divisors (see below), whose sum is σ = 365554944. Its totient is φ = 342707700.

The previous prime is 354131317. The next prime is 354131333. The reversal of 354131321 is 123131453.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 354131321 - 2² = 354131317 is a prime.

It is a super-3 number, since 3×354131321³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (354131311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5711765 + ... + 5711826.

It is an arithmetic number, because the mean of its divisors is an integer number (91388736).

Almost surely, 2^354131321 is an apocalyptic number.

354131321 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

354131321 is a deficient number, since it is larger than the sum of its proper divisors (11423623).

354131321 is a wasteful number, since it uses less digits than its factorization.

354131321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11423622.

The product of its digits is 1080, while the sum is 23.

The square root of 354131321 is about 18818.3772148398. The cubic root of 354131321 is about 707.4918583804.

Adding to 354131321 its reverse (123131453), we get a palindrome (477262774).

The spelling of 354131321 in words is "three hundred fifty-four million, one hundred thirty-one thousand, three hundred twenty-one".