4509122501 has 8 divisors (see below), whose sum is σ = 4935585144. Its totient is φ = 4094032320.

The previous prime is 4509122479. The next prime is 4509122509. The reversal of 4509122501 is 1052219054.

It is a Cunningham number, because it is equal to 67150²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 146652100 + 4362470401 = 12110^2 + 66049^2 .

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 4509122501 - 2¹⁴ = 4509106117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4509122509) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2842286 + ... + 2843871.

It is an arithmetic number, because the mean of its divisors is an integer number (616948143).

Almost surely, 2^4509122501 is an apocalyptic number.

It is an amenable number.

4509122501 is a deficient number, since it is larger than the sum of its proper divisors (426462643).

4509122501 is a wasteful number, since it uses less digits than its factorization.

4509122501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5686231.

The product of its (nonzero) digits is 3600, while the sum is 29.

The square root of 4509122501 is about 67150.0000074460. Note that the first 5 decimals coincide. The cubic root of 4509122501 is about 1652.0784949277.

The spelling of 4509122501 in words is "four billion, five hundred nine million, one hundred twenty-two thousand, five hundred one".