123621485 has 16 divisors (see below), whose sum is σ = 161951664. Its totient is φ = 90035712.

The previous prime is 123621479. The next prime is 123621497. The reversal of 123621485 is 584126321.

It can be written as a sum of positive squares in 8 ways, for example, as 256036 + 123365449 = 506^2 + 11107^2 .

It is not a de Polignac number, because 123621485 - 2⁴ = 123621469 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8282 + ... + 17771.

It is an arithmetic number, because the mean of its divisors is an integer number (10121979).

Almost surely, 2^123621485 is an apocalyptic number.

It is an amenable number.

123621485 is a deficient number, since it is larger than the sum of its proper divisors (38330179).

123621485 is a wasteful number, since it uses less digits than its factorization.

123621485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26144.

The product of its digits is 11520, while the sum is 32.

The square root of 123621485 is about 11118.5199104917. The cubic root of 123621485 is about 498.1551816620.

The spelling of 123621485 in words is "one hundred twenty-three million, six hundred twenty-one thousand, four hundred eighty-five".