157206 has 32 divisors (see below), whose sum is σ = 380160. Its totient is φ = 42336.

The previous prime is 157189. The next prime is 157207. The reversal of 157206 is 602751.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157207) by changing a digit.

157206 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 700 + ... + 896.

It is an arithmetic number, because the mean of its divisors is an integer number (11880).

2¹⁵⁷²⁰⁶ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 157206, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (190080).

157206 is an abundant number, since it is smaller than the sum of its proper divisors (222954).

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

157206 is a wasteful number, since it uses less digits than its factorization.

157206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228.

The product of its (nonzero) digits is 420, while the sum is 21.

The square root of 157206 is about 396.4921184589. The cubic root of 157206 is about 53.9704914224.

Adding to 157206 its reverse (602751), we get a palindrome (759957).

It can be divided in two parts, 157 and 206, that added together give a palindrome (363).

The spelling of 157206 in words is "one hundred fifty-seven thousand, two hundred six".