354005243 has 4 divisors (see below), whose sum is σ = 357982920. Its totient is φ = 350027568.

The previous prime is 354005221. The next prime is 354005273. The reversal of 354005243 is 342500453.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 342500453 = 37 ⋅9256769.

It is a cyclic number.

It is not a de Polignac number, because 354005243 - 2²² = 349810939 is a prime.

It is not an unprimeable number, because it can be changed into a prime (354005273) 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, 1988705 + ... + 1988882.

It is an arithmetic number, because the mean of its divisors is an integer number (89495730).

Almost surely, 2^354005243 is an apocalyptic number.

354005243 is a deficient number, since it is larger than the sum of its proper divisors (3977677).

354005243 is an equidigital number, since it uses as much as digits as its factorization.

354005243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3977676.

The product of its (nonzero) digits is 7200, while the sum is 26.

The square root of 354005243 is about 18815.0270528639. The cubic root of 354005243 is about 707.4078878861.

Adding to 354005243 its reverse (342500453), we get a palindrome (696505696).

The spelling of 354005243 in words is "three hundred fifty-four million, five thousand, two hundred forty-three".