123408629 has 8 divisors (see below), whose sum is σ = 130447680. Its totient is φ = 116424000.

The previous prime is 123408619. The next prime is 123408631. The reversal of 123408629 is 926804321.

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

It is a cyclic number.

It is not a de Polignac number, because 123408629 - 2¹⁶ = 123343093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123408619) 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, 8897 + ... + 18054.

It is an arithmetic number, because the mean of its divisors is an integer number (16305960).

Almost surely, 2^123408629 is an apocalyptic number.

123408629 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

123408629 is a deficient number, since it is larger than the sum of its proper divisors (7039051).

123408629 is a wasteful number, since it uses less digits than its factorization.

123408629 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27211.

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 123408629 is about 11108.9436491504. The cubic root of 123408629 is about 497.8691034610.

The spelling of 123408629 in words is "one hundred twenty-three million, four hundred eight thousand, six hundred twenty-nine".