122742465 has 16 divisors (see below), whose sum is σ = 207940608. Its totient is φ = 61611776.

The previous prime is 122742463. The next prime is 122742469. The reversal of 122742465 is 564247221.

It is a cyclic number.

It is not a de Polignac number, because 122742465 - 2¹ = 122742463 is a prime.

It is not an unprimeable number, because it can be changed into a prime (122742461) 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 in 15 ways as a sum of consecutive naturals, for example, 240417 + ... + 240926.

It is an arithmetic number, because the mean of its divisors is an integer number (12996288).

Almost surely, 2^122742465 is an apocalyptic number.

122742465 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

122742465 is a deficient number, since it is larger than the sum of its proper divisors (85198143).

122742465 is a wasteful number, since it uses less digits than its factorization.

122742465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 481368.

The product of its digits is 26880, while the sum is 33.

The square root of 122742465 is about 11078.9198480718. The cubic root of 122742465 is about 496.9716485385.

Adding to 122742465 its reverse (564247221), we get a palindrome (686989686).

The spelling of 122742465 in words is "one hundred twenty-two million, seven hundred forty-two thousand, four hundred sixty-five".