123480613 has 2 divisors, whose sum is σ = 123480614. Its totient is φ = 123480612.

The previous prime is 123480611. The next prime is 123480641. The reversal of 123480613 is 316084321.

123480613 = 7857² + 7858².

It is an a-pointer prime, because the next prime (123480641) can be obtained adding 123480613 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 61748164 + 61732449 = 7858^2 + 7857^2 .

It is a cyclic number.

It is not a de Polignac number, because 123480613 - 2¹ = 123480611 is a prime.

Together with 123480611, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123480611) by changing a digit.

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 as a sum of consecutive naturals, namely, 61740306 + 61740307.

It is an arithmetic number, because the mean of its divisors is an integer number (61740307).

Almost surely, 2^123480613 is an apocalyptic number.

123480613 is the 7858-th centered square number.

It is an amenable number.

123480613 is a deficient number, since it is larger than the sum of its proper divisors (1).

123480613 is an equidigital number, since it uses as much as digits as its factorization.

123480613 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 123480613 is about 11112.1830888444. The cubic root of 123480613 is about 497.9658866543.

The spelling of 123480613 in words is "one hundred twenty-three million, four hundred eighty thousand, six hundred thirteen".