123799095 has 24 divisors (see below), whose sum is σ = 245240736. Its totient is φ = 56593728.

The previous prime is 123799069. The next prime is 123799111. The reversal of 123799095 is 590997321.

It is a happy number.

It is not a de Polignac number, because 123799095 - 2¹² = 123794999 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 123799095.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 196192 + ... + 196821.

It is an arithmetic number, because the mean of its divisors is an integer number (10218364).

Almost surely, 2^123799095 is an apocalyptic number.

123799095 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

123799095 is a deficient number, since it is larger than the sum of its proper divisors (121441641).

123799095 is a wasteful number, since it uses less digits than its factorization.

123799095 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 393031 (or 393028 counting only the distinct ones).

The product of its (nonzero) digits is 153090, while the sum is 45.

The square root of 123799095 is about 11126.5041679766. The cubic root of 123799095 is about 498.3936380627.

The spelling of 123799095 in words is "one hundred twenty-three million, seven hundred ninety-nine thousand, ninety-five".