356109 has 16 divisors (see below), whose sum is σ = 534912. Its totient is φ = 209088.

The previous prime is 356101. The next prime is 356113. The reversal of 356109 is 901653.

It is not a de Polignac number, because 356109 - 2³ = 356101 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (356101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 699 + ... + 1095.

It is an arithmetic number, because the mean of its divisors is an integer number (33432).

2³⁵⁶¹⁰⁹ is an apocalyptic number.

356109 is a gapful number since it is divisible by the number (39) formed by its first and last digit.

It is an amenable number.

356109 is a deficient number, since it is larger than the sum of its proper divisors (178803).

356109 is a wasteful number, since it uses less digits than its factorization.

356109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 436.

The product of its (nonzero) digits is 810, while the sum is 24.

The square root of 356109 is about 596.7486908239. The cubic root of 356109 is about 70.8806432119.

It can be divided in two parts, 356 and 109, that added together give a triangular number (465 = T₃₀).

The spelling of 356109 in words is "three hundred fifty-six thousand, one hundred nine".