45711121 has 3 divisors (see below), whose sum is σ = 45717883. Its totient is φ = 45704360.

The previous prime is 45711109. The next prime is 45711157. The reversal of 45711121 is 12111754.

The square root of 45711121 is 6761.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 36469521 + 9241600 = 6039^2 + 3040^2 .

It is not a de Polignac number, because 45711121 - 2⁵ = 45711089 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 45711092 and 45711101.

It is not an unprimeable number, because it can be changed into a prime (45711101) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 3381 + ... + 10141.

Almost surely, 2^45711121 is an apocalyptic number.

45711121 is the 6761-st square number.

45711121 is the 3381-st centered octagonal number.

It is an amenable number.

45711121 is a deficient number, since it is larger than the sum of its proper divisors (6762).

45711121 is an frugal number, since it uses more digits than its factorization.

45711121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13522 (or 6761 counting only the distinct ones).

The product of its digits is 280, while the sum is 22.

The cubic root of 45711121 is about 357.5531627461.

Adding to 45711121 its reverse (12111754), we get a palindrome (57822875).

The spelling of 45711121 in words is "forty-five million, seven hundred eleven thousand, one hundred twenty-one".