123251501 has 2 divisors, whose sum is σ = 123251502. Its totient is φ = 123251500.

The previous prime is 123251483. The next prime is 123251507. The reversal of 123251501 is 105152321.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 97495876 + 25755625 = 9874^2 + 5075^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123251501 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123251507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61625750 + 61625751.

It is an arithmetic number, because the mean of its divisors is an integer number (61625751).

Almost surely, 2^123251501 is an apocalyptic number.

It is an amenable number.

123251501 is a deficient number, since it is larger than the sum of its proper divisors (1).

123251501 is an equidigital number, since it uses as much as digits as its factorization.

123251501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 123251501 is about 11101.8692570215. The cubic root of 123251501 is about 497.6577125127.

The spelling of 123251501 in words is "one hundred twenty-three million, two hundred fifty-one thousand, five hundred one".