740123 has 2 divisors, whose sum is σ = 740124. Its totient is φ = 740122.

The previous prime is 740099. The next prime is 740141. The reversal of 740123 is 321047.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (321047) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 740123 - 2⁶ = 740059 is a prime.

It is not a weakly prime, because it can be changed into another prime (740143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 370061 + 370062.

It is an arithmetic number, because the mean of its divisors is an integer number (370062).

2⁷⁴⁰¹²³ is an apocalyptic number.

740123 is a deficient number, since it is larger than the sum of its proper divisors (1).

740123 is an equidigital number, since it uses as much as digits as its factorization.

740123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 168, while the sum is 17.

The square root of 740123 is about 860.3040160315. The cubic root of 740123 is about 90.4554281295.

The spelling of 740123 in words is "seven hundred forty thousand, one hundred twenty-three", and thus it is an iban number.