122513765 has 16 divisors (see below), whose sum is σ = 160634880. Its totient is φ = 88960320.

The previous prime is 122513761. The next prime is 122513773. The reversal of 122513765 is 567315221.

It is not a de Polignac number, because 122513765 - 2² = 122513761 is a prime.

It is a super-2 number, since 2×122513765² = 30019245228950450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122513761) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44252 + ... + 46938.

It is an arithmetic number, because the mean of its divisors is an integer number (10039680).

Almost surely, 2^122513765 is an apocalyptic number.

It is an amenable number.

122513765 is a deficient number, since it is larger than the sum of its proper divisors (38121115).

122513765 is a wasteful number, since it uses less digits than its factorization.

122513765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3532.

The product of its digits is 12600, while the sum is 32.

The square root of 122513765 is about 11068.5936324359. The cubic root of 122513765 is about 496.6627956897.

Adding to 122513765 its reverse (567315221), we get a palindrome (689828986).

The spelling of 122513765 in words is "one hundred twenty-two million, five hundred thirteen thousand, seven hundred sixty-five".