155853 has 6 divisors (see below), whose sum is σ = 225134. Its totient is φ = 103896.

The previous prime is 155851. The next prime is 155861. The reversal of 155853 is 358551.

It can be written as a sum of positive squares in only one way, i.e., 149769 + 6084 = 387^2 + 78^2 .

It is not a de Polignac number, because 155853 - 2¹ = 155851 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 155853.

It is not an unprimeable number, because it can be changed into a prime (155851) 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, 8650 + ... + 8667.

2¹⁵⁵⁸⁵³ is an apocalyptic number.

It is an amenable number.

155853 is a deficient number, since it is larger than the sum of its proper divisors (69281).

155853 is a wasteful number, since it uses less digits than its factorization.

155853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17323 (or 17320 counting only the distinct ones).

The product of its digits is 3000, while the sum is 27.

The square root of 155853 is about 394.7822184445. The cubic root of 155853 is about 53.8152119981.

The spelling of 155853 in words is "one hundred fifty-five thousand, eight hundred fifty-three".