123651347 has 2 divisors, whose sum is σ = 123651348. Its totient is φ = 123651346.

The previous prime is 123651337. The next prime is 123651379. The reversal of 123651347 is 743156321.

It is an a-pointer prime, because the next prime (123651379) can be obtained adding 123651347 to its sum of digits (32).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 123651347 - 2⁸ = 123651091 is a prime.

It is a super-2 number, since 2×123651347² = 30579311229828818, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (123651317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61825673 + 61825674.

It is an arithmetic number, because the mean of its divisors is an integer number (61825674).

Almost surely, 2^123651347 is an apocalyptic number.

123651347 is a deficient number, since it is larger than the sum of its proper divisors (1).

123651347 is an equidigital number, since it uses as much as digits as its factorization.

123651347 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15120, while the sum is 32.

The square root of 123651347 is about 11119.8627239728. The cubic root of 123651347 is about 498.1952898800.

The spelling of 123651347 in words is "one hundred twenty-three million, six hundred fifty-one thousand, three hundred forty-seven".