123554071 has 2 divisors, whose sum is σ = 123554072. Its totient is φ = 123554070.

The previous prime is 123554069. The next prime is 123554107. The reversal of 123554071 is 170455321.

It is a happy number.

Together with next prime (123554107) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is an emirp because it is prime and its reverse (170455321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 123554071 - 2¹ = 123554069 is a prime.

Together with 123554069, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123554021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61777035 + 61777036.

It is an arithmetic number, because the mean of its divisors is an integer number (61777036).

Almost surely, 2^123554071 is an apocalyptic number.

123554071 is a deficient number, since it is larger than the sum of its proper divisors (1).

123554071 is an equidigital number, since it uses as much as digits as its factorization.

123554071 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 123554071 is about 11115.4878885274. The cubic root of 123554071 is about 498.0646128860.

The spelling of 123554071 in words is "one hundred twenty-three million, five hundred fifty-four thousand, seventy-one".