123929530 has 8 divisors (see below), whose sum is σ = 223073172. Its totient is φ = 49571808.

The previous prime is 123929489. The next prime is 123929549. The reversal of 123929530 is 35929321.

It can be written as a sum of positive squares in 2 ways, for example, as 120099681 + 3829849 = 10959^2 + 1957^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6196467 + ... + 6196486.

Almost surely, 2^123929530 is an apocalyptic number.

123929530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123929530 is a deficient number, since it is larger than the sum of its proper divisors (99143642).

123929530 is a wasteful number, since it uses less digits than its factorization.

123929530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12392960.

The product of its (nonzero) digits is 14580, while the sum is 34.

The square root of 123929530 is about 11132.3640795655. The cubic root of 123929530 is about 498.5686128386.

The spelling of 123929530 in words is "one hundred twenty-three million, nine hundred twenty-nine thousand, five hundred thirty".