122905630 has 16 divisors (see below), whose sum is σ = 222717600. Its totient is φ = 48831712.

The previous prime is 122905621. The next prime is 122905637. The reversal of 122905630 is 36509221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122905637) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39754 + ... + 42733.

It is an arithmetic number, because the mean of its divisors is an integer number (13919850).

Almost surely, 2^122905630 is an apocalyptic number.

122905630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122905630 is a deficient number, since it is larger than the sum of its proper divisors (99811970).

122905630 is a wasteful number, since it uses less digits than its factorization.

122905630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82643.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 122905630 is about 11086.2811618685. The cubic root of 122905630 is about 497.1917638141.

The spelling of 122905630 in words is "one hundred twenty-two million, nine hundred five thousand, six hundred thirty".