123070817 has 4 divisors (see below), whose sum is σ = 123807936. Its totient is φ = 122333700.

The previous prime is 123070793. The next prime is 123070819. The reversal of 123070817 is 718070321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 718070321 = 1021 ⋅703301.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123070817 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 123070817.

It is not an unprimeable number, because it can be changed into a prime (123070819) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 368309 + ... + 368642.

It is an arithmetic number, because the mean of its divisors is an integer number (30951984).

Almost surely, 2^123070817 is an apocalyptic number.

It is an amenable number.

123070817 is a deficient number, since it is larger than the sum of its proper divisors (737119).

123070817 is an equidigital number, since it uses as much as digits as its factorization.

123070817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 737118.

The product of its (nonzero) digits is 2352, while the sum is 29.

The square root of 123070817 is about 11093.7287239233. The cubic root of 123070817 is about 497.4144084802.

The spelling of 123070817 in words is "one hundred twenty-three million, seventy thousand, eight hundred seventeen".