155347 has 4 divisors (see below), whose sum is σ = 158040. Its totient is φ = 152656.

The previous prime is 155333. The next prime is 155371. The reversal of 155347 is 743551.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 155347 - 2⁷ = 155219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (155317) 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 3 ways as a sum of consecutive naturals, for example, 1258 + ... + 1375.

It is an arithmetic number, because the mean of its divisors is an integer number (39510).

2¹⁵⁵³⁴⁷ is an apocalyptic number.

155347 is a deficient number, since it is larger than the sum of its proper divisors (2693).

155347 is an equidigital number, since it uses as much as digits as its factorization.

155347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2692.

The product of its digits is 2100, while the sum is 25.

The square root of 155347 is about 394.1408377725. The cubic root of 155347 is about 53.7569091533.

Adding to 155347 its reverse (743551), we get a palindrome (898898).

It can be divided in two parts, 1553 and 47, that added together give a square (1600 = 40²).

The spelling of 155347 in words is "one hundred fifty-five thousand, three hundred forty-seven".