122506730 has 32 divisors (see below), whose sum is σ = 235491840. Its totient is φ = 45783360.

The previous prime is 122506723. The next prime is 122506739. The reversal of 122506730 is 37605221.

It is a self number, because there is not a number n which added to its sum of digits gives 122506730.

It is not an unprimeable number, because it can be changed into a prime (122506739) 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, 2177 + ... + 15803.

It is an arithmetic number, because the mean of its divisors is an integer number (7359120).

Almost surely, 2^122506730 is an apocalyptic number.

122506730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122506730 is a deficient number, since it is larger than the sum of its proper divisors (112985110).

122506730 is a wasteful number, since it uses less digits than its factorization.

122506730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13694.

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 122506730 is about 11068.2758368230. The cubic root of 122506730 is about 496.6532890310.

The spelling of 122506730 in words is "one hundred twenty-two million, five hundred six thousand, seven hundred thirty".