123143470 has 16 divisors (see below), whose sum is σ = 228809088. Its totient is φ = 47668320.

The previous prime is 123143429. The next prime is 123143477. The reversal of 123143470 is 74341321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123143477) 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, 198309 + ... + 198928.

It is an arithmetic number, because the mean of its divisors is an integer number (14300568).

Almost surely, 2^123143470 is an apocalyptic number.

123143470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123143470 is a deficient number, since it is larger than the sum of its proper divisors (105665618).

123143470 is a wasteful number, since it uses less digits than its factorization.

123143470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 397275.

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 123143470 is about 11097.0027484902. The cubic root of 123143470 is about 497.5122695896.

Adding to 123143470 its reverse (74341321), we get a palindrome (197484791).

The spelling of 123143470 in words is "one hundred twenty-three million, one hundred forty-three thousand, four hundred seventy".