123351457 has 2 divisors, whose sum is σ = 123351458. Its totient is φ = 123351456.

The previous prime is 123351409. The next prime is 123351463. The reversal of 123351457 is 754153321.

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., 110649361 + 12702096 = 10519^2 + 3564^2 .

It is a cyclic number.

It is not a de Polignac number, because 123351457 - 2¹¹ = 123349409 is a prime.

It is not a weakly prime, because it can be changed into another prime (123351407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61675728 + 61675729.

It is an arithmetic number, because the mean of its divisors is an integer number (61675729).

Almost surely, 2^123351457 is an apocalyptic number.

It is an amenable number.

123351457 is a deficient number, since it is larger than the sum of its proper divisors (1).

123351457 is an equidigital number, since it uses as much as digits as its factorization.

123351457 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12600, while the sum is 31.

The square root of 123351457 is about 11106.3701090860. The cubic root of 123351457 is about 497.7922083272.

The spelling of 123351457 in words is "one hundred twenty-three million, three hundred fifty-one thousand, four hundred fifty-seven".