123415930 has 32 divisors (see below), whose sum is σ = 252885888. Its totient is φ = 42926400.

The previous prime is 123415927. The next prime is 123415931. The reversal of 123415930 is 39514321.

It is not an unprimeable number, because it can be changed into a prime (123415931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21861 + ... + 26920.

It is an arithmetic number, because the mean of its divisors is an integer number (7902684).

Almost surely, 2^123415930 is an apocalyptic number.

123415930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123415930 is an abundant number, since it is smaller than the sum of its proper divisors (129469958).

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

123415930 is a wasteful number, since it uses less digits than its factorization.

123415930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48822.

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

The square root of 123415930 is about 11109.2722533927. The cubic root of 123415930 is about 497.8789214417.

The spelling of 123415930 in words is "one hundred twenty-three million, four hundred fifteen thousand, nine hundred thirty".