45615481 has 2 divisors, whose sum is σ = 45615482. Its totient is φ = 45615480.

The previous prime is 45615473. The next prime is 45615527. The reversal of 45615481 is 18451654.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34164025 + 11451456 = 5845^2 + 3384^2 .

It is a cyclic number.

It is not a de Polignac number, because 45615481 - 2³ = 45615473 is a prime.

It is a super-2 number, since 2×45615481² = 4161544213722722, which contains 22 as substring.

It is equal to p_2753269 and since 45615481 and 2753269 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (45615421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22807740 + 22807741.

It is an arithmetic number, because the mean of its divisors is an integer number (22807741).

Almost surely, 2^45615481 is an apocalyptic number.

It is an amenable number.

45615481 is a deficient number, since it is larger than the sum of its proper divisors (1).

45615481 is an equidigital number, since it uses as much as digits as its factorization.

45615481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 19200, while the sum is 34.

The square root of 45615481 is about 6753.9233783039. The cubic root of 45615481 is about 357.3036227301.

Adding to 45615481 its product of digits (19200), we get a triangular number (45634681 = T₉₅₅₃).

The spelling of 45615481 in words is "forty-five million, six hundred fifteen thousand, four hundred eighty-one".