353945 has 8 divisors (see below), whose sum is σ = 439560. Its totient is φ = 273280.

The previous prime is 353939. The next prime is 353963. The reversal of 353945 is 549353.

It can be written as a sum of positive squares in 4 ways, for example, as 3481 + 350464 = 59^2 + 592^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 353945 - 2⁴ = 353929 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a plaindrome in base 16.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1076 + ... + 1365.

It is an arithmetic number, because the mean of its divisors is an integer number (54945).

2³⁵³⁹⁴⁵ is an apocalyptic number.

It is an amenable number.

353945 is a deficient number, since it is larger than the sum of its proper divisors (85615).

353945 is a wasteful number, since it uses less digits than its factorization.

353945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2475.

The product of its digits is 8100, while the sum is 29.

The square root of 353945 is about 594.9327693110. The cubic root of 353945 is about 70.7367757792.

It can be divided in two parts, 35 and 3945, that multiplied together give a triangular number (138075 = T₅₂₅).

The spelling of 353945 in words is "three hundred fifty-three thousand, nine hundred forty-five".