123599453 has 2 divisors, whose sum is σ = 123599454. Its totient is φ = 123599452.

The previous prime is 123599431. The next prime is 123599467. The reversal of 123599453 is 354995321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 112296409 + 11303044 = 10597^2 + 3362^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123599453 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 123599453.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123599153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61799726 + 61799727.

It is an arithmetic number, because the mean of its divisors is an integer number (61799727).

Almost surely, 2^123599453 is an apocalyptic number.

It is an amenable number.

123599453 is a deficient number, since it is larger than the sum of its proper divisors (1).

123599453 is an equidigital number, since it uses as much as digits as its factorization.

123599453 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 145800, while the sum is 41.

The square root of 123599453 is about 11117.5290869869. The cubic root of 123599453 is about 498.1255859246.

It can be divided in two parts, 12359 and 9453, that added together give a palindrome (21812).

The spelling of 123599453 in words is "one hundred twenty-three million, five hundred ninety-nine thousand, four hundred fifty-three".