155214 has 12 divisors (see below), whose sum is σ = 336336. Its totient is φ = 51732.

The previous prime is 155209. The next prime is 155219. The reversal of 155214 is 412551.

It is an interprime number because it is at equal distance from previous prime (155209) and next prime (155219).

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 8623 = 155214 / (1 + 5 + 5 + 2 + 1 + 4).

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155219) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4294 + ... + 4329.

It is an arithmetic number, because the mean of its divisors is an integer number (28028).

2¹⁵⁵²¹⁴ is an apocalyptic number.

155214 is an abundant number, since it is smaller than the sum of its proper divisors (181122).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

155214 is a wasteful number, since it uses less digits than its factorization.

155214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8631 (or 8628 counting only the distinct ones).

The product of its digits is 200, while the sum is 18.

The square root of 155214 is about 393.9720802290. The cubic root of 155214 is about 53.7415634857.

Adding to 155214 its reverse (412551), we get a palindrome (567765).

It can be divided in two parts, 15 and 5214, that multiplied together give a triangular number (78210 = T₃₉₅).

The spelling of 155214 in words is "one hundred fifty-five thousand, two hundred fourteen".