123740465 has 8 divisors (see below), whose sum is σ = 150368640. Its totient is φ = 97738992.

The previous prime is 123740447. The next prime is 123740473. The reversal of 123740465 is 564047321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 123740465 - 2⁶ = 123740401 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 156239 + ... + 157028.

It is an arithmetic number, because the mean of its divisors is an integer number (18796080).

Almost surely, 2^123740465 is an apocalyptic number.

It is an amenable number.

123740465 is a deficient number, since it is larger than the sum of its proper divisors (26628175).

123740465 is an equidigital number, since it uses as much as digits as its factorization.

123740465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313351.

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 123740465 is about 11123.8691560086. The cubic root of 123740465 is about 498.3149475760.

Adding to 123740465 its reverse (564047321), we get a palindrome (687787786).

The spelling of 123740465 in words is "one hundred twenty-three million, seven hundred forty thousand, four hundred sixty-five".