45121501 has 2 divisors, whose sum is σ = 45121502. Its totient is φ = 45121500.

The previous prime is 45121481. The next prime is 45121507. The reversal of 45121501 is 10512154.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 45091225 + 30276 = 6715^2 + 174^2 .

It is a cyclic number.

It is not a de Polignac number, because 45121501 - 2⁹ = 45120989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45121507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22560750 + 22560751.

It is an arithmetic number, because the mean of its divisors is an integer number (22560751).

Almost surely, 2^45121501 is an apocalyptic number.

It is an amenable number.

45121501 is a deficient number, since it is larger than the sum of its proper divisors (1).

45121501 is an equidigital number, since it uses as much as digits as its factorization.

45121501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 200, while the sum is 19.

The square root of 45121501 is about 6717.2539776310. The cubic root of 45121501 is about 356.0091657994.

Adding to 45121501 its reverse (10512154), we get a palindrome (55633655).

It can be divided in two parts, 451 and 21501, that added together give a cube (21952 = 28³).

The spelling of 45121501 in words is "forty-five million, one hundred twenty-one thousand, five hundred one".