122563830 has 32 divisors (see below), whose sum is σ = 294948864. Its totient is φ = 32595296.

The previous prime is 122563811. The next prime is 122563871. The reversal of 122563830 is 38365221.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6157 + ... + 16823.

It is an arithmetic number, because the mean of its divisors is an integer number (9217152).

Almost surely, 2^122563830 is an apocalyptic number.

122563830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122563830 is an abundant number, since it is smaller than the sum of its proper divisors (172385034).

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

122563830 is a wasteful number, since it uses less digits than its factorization.

122563830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11060.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 122563830 is about 11070.8549805333. The cubic root of 122563830 is about 496.7304398889.

The spelling of 122563830 in words is "one hundred twenty-two million, five hundred sixty-three thousand, eight hundred thirty".