45215441 has 2 divisors, whose sum is σ = 45215442. Its totient is φ = 45215440.

The previous prime is 45215411. The next prime is 45215473. The reversal of 45215441 is 14451254.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23078416 + 22137025 = 4804^2 + 4705^2 .

It is a cyclic number.

It is not a de Polignac number, because 45215441 - 2¹⁴ = 45199057 is a prime.

It is a super-3 number, since 3×45215441³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 45215441.

It is not a weakly prime, because it can be changed into another prime (45215411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22607720 + 22607721.

It is an arithmetic number, because the mean of its divisors is an integer number (22607721).

Almost surely, 2^45215441 is an apocalyptic number.

It is an amenable number.

45215441 is a deficient number, since it is larger than the sum of its proper divisors (1).

45215441 is an equidigital number, since it uses as much as digits as its factorization.

45215441 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3200, while the sum is 26.

The square root of 45215441 is about 6724.2427826485. The cubic root of 45215441 is about 356.2560571044.

Adding to 45215441 its reverse (14451254), we get a palindrome (59666695).

The spelling of 45215441 in words is "forty-five million, two hundred fifteen thousand, four hundred forty-one".