122730 has 16 divisors (see below), whose sum is σ = 294624. Its totient is φ = 32720.

The previous prime is 122719. The next prime is 122741. The reversal of 122730 is 37221.

It is an interprime number because it is at equal distance from previous prime (122719) and next prime (122741).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

122730 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 7 ways as a sum of consecutive naturals, for example, 2016 + ... + 2075.

It is an arithmetic number, because the mean of its divisors is an integer number (18414).

2¹²²⁷³⁰ is an apocalyptic number.

122730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122730 is an abundant number, since it is smaller than the sum of its proper divisors (171894).

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

122730 is a wasteful number, since it uses less digits than its factorization.

122730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4101.

The product of its (nonzero) digits is 84, while the sum is 15.

The square root of 122730 is about 350.3284173458. The cubic root of 122730 is about 49.6954824800.

Adding to 122730 its reverse (37221), we get a palindrome (159951).

The spelling of 122730 in words is "one hundred twenty-two thousand, seven hundred thirty".