123898651 has 2 divisors, whose sum is σ = 123898652. Its totient is φ = 123898650.

The previous prime is 123898603. The next prime is 123898657. The reversal of 123898651 is 156898321.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 123898651 - 2¹¹ = 123896603 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 123898598 and 123898607.

It is not a weakly prime, because it can be changed into another prime (123898657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61949325 + 61949326.

It is an arithmetic number, because the mean of its divisors is an integer number (61949326).

Almost surely, 2^123898651 is an apocalyptic number.

123898651 is a deficient number, since it is larger than the sum of its proper divisors (1).

123898651 is an equidigital number, since it uses as much as digits as its factorization.

123898651 is an evil number, because the sum of its binary digits is even.

The product of its digits is 103680, while the sum is 43.

The square root of 123898651 is about 11130.9770909835. The cubic root of 123898651 is about 498.5272006504.

The spelling of 123898651 in words is "one hundred twenty-three million, eight hundred ninety-eight thousand, six hundred fifty-one".