122649830 has 8 divisors (see below), whose sum is σ = 220769712. Its totient is φ = 49059928.

The previous prime is 122649829. The next prime is 122649841. The reversal of 122649830 is 38946221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6132482 + ... + 6132501.

It is an arithmetic number, because the mean of its divisors is an integer number (27596214).

Almost surely, 2^122649830 is an apocalyptic number.

122649830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122649830 is a deficient number, since it is larger than the sum of its proper divisors (98119882).

122649830 is a wasteful number, since it uses less digits than its factorization.

122649830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12264990.

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 122649830 is about 11074.7383716276. The cubic root of 122649830 is about 496.8465938694.

The spelling of 122649830 in words is "one hundred twenty-two million, six hundred forty-nine thousand, eight hundred thirty".