123039470 has 32 divisors (see below), whose sum is σ = 225828000. Its totient is φ = 48254976.

The previous prime is 123039461. The next prime is 123039479. The reversal of 123039470 is 74930321.

It is an interprime number because it is at equal distance from previous prime (123039461) and next prime (123039479).

It is a super-2 number, since 2×123039470² = 30277422355761800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123039479) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 273806 + ... + 274254.

It is an arithmetic number, because the mean of its divisors is an integer number (7057125).

Almost surely, 2^123039470 is an apocalyptic number.

123039470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123039470 is a deficient number, since it is larger than the sum of its proper divisors (102788530).

123039470 is a wasteful number, since it uses less digits than its factorization.

123039470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 932.

The product of its (nonzero) digits is 4536, while the sum is 29.

The square root of 123039470 is about 11092.3158087029. The cubic root of 123039470 is about 497.3721732483.

Adding to 123039470 its reverse (74930321), we get a palindrome (197969791).

The spelling of 123039470 in words is "one hundred twenty-three million, thirty-nine thousand, four hundred seventy".