123652091 has 2 divisors, whose sum is σ = 123652092. Its totient is φ = 123652090.

The previous prime is 123652073. The next prime is 123652093. The reversal of 123652091 is 190256321.

It is a strong prime.

It is an emirp because it is prime and its reverse (190256321) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123652091 is a prime.

Together with 123652093, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (123652093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61826045 + 61826046.

It is an arithmetic number, because the mean of its divisors is an integer number (61826046).

Almost surely, 2^123652091 is an apocalyptic number.

123652091 is a deficient number, since it is larger than the sum of its proper divisors (1).

123652091 is an equidigital number, since it uses as much as digits as its factorization.

123652091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3240, while the sum is 29.

The square root of 123652091 is about 11119.8961775729. The cubic root of 123652091 is about 498.1962890780.

The spelling of 123652091 in words is "one hundred twenty-three million, six hundred fifty-two thousand, ninety-one".