156630 has 32 divisors (see below), whose sum is σ = 393984. Its totient is φ = 39776.

The previous prime is 156623. The next prime is 156631. The reversal of 156630 is 36651.

It is a nialpdrome in base 11.

It is a junction number, because it is equal to n+sod(n) for n = 156597 and 156606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (156631) by changing a digit.

156630 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, 577 + ... + 803.

It is an arithmetic number, because the mean of its divisors is an integer number (12312).

2¹⁵⁶⁶³⁰ is an apocalyptic number.

156630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 156630, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (196992).

156630 is an abundant number, since it is smaller than the sum of its proper divisors (237354).

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

156630 is a wasteful number, since it uses less digits than its factorization.

156630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260.

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 156630 is about 395.7650818352. The cubic root of 156630 is about 53.9044951120.

Adding to 156630 its sum of digits (21), we get a palindrome (156651).

It can be divided in two parts, 1566 and 30, that added together give a triangular number (1596 = T₅₆).

The spelling of 156630 in words is "one hundred fifty-six thousand, six hundred thirty".