354289123 has 4 divisors (see below), whose sum is σ = 354404160. Its totient is φ = 354174088.

The previous prime is 354289121. The next prime is 354289127. The reversal of 354289123 is 321982453.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 321982453 = 13 ⋅24767881.

It is a cyclic number.

It is not a de Polignac number, because 354289123 - 2¹ = 354289121 is a prime.

It is a super-2 number, since 2×354289123² = 251041565352218258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (354289121) 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, 52768 + ... + 59101.

It is an arithmetic number, because the mean of its divisors is an integer number (88601040).

Almost surely, 2^354289123 is an apocalyptic number.

354289123 is a deficient number, since it is larger than the sum of its proper divisors (115037).

354289123 is a wasteful number, since it uses less digits than its factorization.

354289123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115036.

The product of its digits is 51840, while the sum is 37.

The square root of 354289123 is about 18822.5695110949. The cubic root of 354289123 is about 707.5969296208.

It can be divided in two parts, 35428 and 9123, that added together give a triangular number (44551 = T₂₉₈).

The spelling of 354289123 in words is "three hundred fifty-four million, two hundred eighty-nine thousand, one hundred twenty-three".