354981 has 16 divisors (see below), whose sum is σ = 534528. Its totient is φ = 207600.

The previous prime is 354979. The next prime is 354983. The reversal of 354981 is 189453.

It is an interprime number because it is at equal distance from previous prime (354979) and next prime (354983).

It is not a de Polignac number, because 354981 - 2¹ = 354979 is a prime.

It is a super-2 number, since 2×354981² = 252023020722, which contains 22 as substring.

It is a Curzon number.

It is a zygodrome in base 4.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (354983) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 850 + ... + 1196.

It is an arithmetic number, because the mean of its divisors is an integer number (33408).

2³⁵⁴⁹⁸¹ is an apocalyptic number.

354981 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

354981 is a deficient number, since it is larger than the sum of its proper divisors (179547).

354981 is a wasteful number, since it uses less digits than its factorization.

354981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392.

The product of its digits is 4320, while the sum is 30.

The square root of 354981 is about 595.8028197315. The cubic root of 354981 is about 70.8057242651.

The spelling of 354981 in words is "three hundred fifty-four thousand, nine hundred eighty-one".