123450078 has 16 divisors (see below), whose sum is σ = 249345936. Its totient is φ = 40742400.

The previous prime is 123450023. The next prime is 123450079. The reversal of 123450078 is 870054321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123450079) 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, 101251 + ... + 102462.

It is an arithmetic number, because the mean of its divisors is an integer number (15584121).

Almost surely, 2^123450078 is an apocalyptic number.

123450078 is an abundant number, since it is smaller than the sum of its proper divisors (125895858).

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

123450078 is a wasteful number, since it uses less digits than its factorization.

123450078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203819.

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 123450078 is about 11110.8090614500. The cubic root of 123450078 is about 497.9248366425.

The spelling of 123450078 in words is "one hundred twenty-three million, four hundred fifty thousand, seventy-eight".