123489433 has 2 divisors, whose sum is σ = 123489434. Its totient is φ = 123489432.

The previous prime is 123489427. The next prime is 123489467. The reversal of 123489433 is 334984321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 86620249 + 36869184 = 9307^2 + 6072^2 .

It is a cyclic number.

It is not a de Polignac number, because 123489433 - 2⁹ = 123488921 is a prime.

It is a super-2 number, since 2×123489433² = 30499280125322978, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 123489392 and 123489401.

It is not a weakly prime, because it can be changed into another prime (123489473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61744716 + 61744717.

It is an arithmetic number, because the mean of its divisors is an integer number (61744717).

Almost surely, 2^123489433 is an apocalyptic number.

It is an amenable number.

123489433 is a deficient number, since it is larger than the sum of its proper divisors (1).

123489433 is an equidigital number, since it uses as much as digits as its factorization.

123489433 is an evil number, because the sum of its binary digits is even.

The product of its digits is 62208, while the sum is 37.

The square root of 123489433 is about 11112.5799434695. The cubic root of 123489433 is about 497.9777426438.

The spelling of 123489433 in words is "one hundred twenty-three million, four hundred eighty-nine thousand, four hundred thirty-three".