45121511 has 2 divisors, whose sum is σ = 45121512. Its totient is φ = 45121510.

The previous prime is 45121507. The next prime is 45121513. The reversal of 45121511 is 11512154.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 45121511 - 2² = 45121507 is a prime.

Together with 45121513, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45121513) 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, 22560755 + 22560756.

It is an arithmetic number, because the mean of its divisors is an integer number (22560756).

Almost surely, 2^45121511 is an apocalyptic number.

45121511 is a deficient number, since it is larger than the sum of its proper divisors (1).

45121511 is an equidigital number, since it uses as much as digits as its factorization.

45121511 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 200, while the sum is 20.

The square root of 45121511 is about 6717.2547219828. The cubic root of 45121511 is about 356.0091920995.

Adding to 45121511 its reverse (11512154), we get a palindrome (56633665).

The spelling of 45121511 in words is "forty-five million, one hundred twenty-one thousand, five hundred eleven".