155342 has 16 divisors (see below), whose sum is σ = 266112. Its totient is φ = 67320.

The previous prime is 155333. The next prime is 155371. The reversal of 155342 is 243551.

It is a super-2 number, since 2×155342² = 48262273928, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 353 + ... + 659.

It is an arithmetic number, because the mean of its divisors is an integer number (16632).

2¹⁵⁵³⁴² is an apocalyptic number.

155342 is a deficient number, since it is larger than the sum of its proper divisors (110770).

155342 is a wasteful number, since it uses less digits than its factorization.

155342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343.

The product of its digits is 600, while the sum is 20.

The square root of 155342 is about 394.1344948111. The cubic root of 155342 is about 53.7563324070.

Adding to 155342 its reverse (243551), we get a palindrome (398893).

Subtracting 155342 from its reverse (243551), we obtain a square (88209 = 297²).

The spelling of 155342 in words is "one hundred fifty-five thousand, three hundred forty-two".