123196357 has 2 divisors, whose sum is σ = 123196358. Its totient is φ = 123196356.

The previous prime is 123196309. The next prime is 123196369. The reversal of 123196357 is 753691321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 117809316 + 5387041 = 10854^2 + 2321^2 .

It is an emirp because it is prime and its reverse (753691321) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123196357 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123196457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61598178 + 61598179.

It is an arithmetic number, because the mean of its divisors is an integer number (61598179).

Almost surely, 2^123196357 is an apocalyptic number.

It is an amenable number.

123196357 is a deficient number, since it is larger than the sum of its proper divisors (1).

123196357 is an equidigital number, since it uses as much as digits as its factorization.

123196357 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34020, while the sum is 37.

The square root of 123196357 is about 11099.3854334373. The cubic root of 123196357 is about 497.5834823669.

The spelling of 123196357 in words is "one hundred twenty-three million, one hundred ninety-six thousand, three hundred fifty-seven".