123740275 has 6 divisors (see below), whose sum is σ = 153437972. Its totient is φ = 98992200.

The previous prime is 123740273. The next prime is 123740327. The reversal of 123740275 is 572047321.

It is not a de Polignac number, because 123740275 - 2¹ = 123740273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123740273) 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 in 5 ways as a sum of consecutive naturals, for example, 2474781 + ... + 2474830.

Almost surely, 2^123740275 is an apocalyptic number.

123740275 is a deficient number, since it is larger than the sum of its proper divisors (29697697).

123740275 is an equidigital number, since it uses as much as digits as its factorization.

123740275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4949621 (or 4949616 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 31.

The square root of 123740275 is about 11123.8606158114. The cubic root of 123740275 is about 498.3146925264.

Adding to 123740275 its reverse (572047321), we get a palindrome (695787596).

The spelling of 123740275 in words is "one hundred twenty-three million, seven hundred forty thousand, two hundred seventy-five".