155736 has 64 divisors (see below), whose sum is σ = 499200. Its totient is φ = 44064.

The previous prime is 155731. The next prime is 155741. The reversal of 155736 is 637551.

It is an interprime number because it is at equal distance from previous prime (155731) and next prime (155741).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155731) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1461 + ... + 1563.

It is an arithmetic number, because the mean of its divisors is an integer number (7800).

2¹⁵⁵⁷³⁶ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 155736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (249600).

155736 is an abundant number, since it is smaller than the sum of its proper divisors (343464).

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

155736 is a wasteful number, since it uses less digits than its factorization.

155736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125 (or 115 counting only the distinct ones).

The product of its digits is 3150, while the sum is 27.

The square root of 155736 is about 394.6340076577. The cubic root of 155736 is about 53.8017421344.

The spelling of 155736 in words is "one hundred fifty-five thousand, seven hundred thirty-six".