45443515 has 32 divisors (see below), whose sum is σ = 62052480. Its totient is φ = 31696896.

The previous prime is 45443477. The next prime is 45443527. The reversal of 45443515 is 51534454.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 45443515 - 2¹¹ = 45441467 is a prime.

It is a super-2 number, since 2×45443515² = 4130226111110450, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 168801 + ... + 169069.

It is an arithmetic number, because the mean of its divisors is an integer number (1939140).

Almost surely, 2^45443515 is an apocalyptic number.

45443515 is a deficient number, since it is larger than the sum of its proper divisors (16608965).

45443515 is a wasteful number, since it uses less digits than its factorization.

45443515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423.

The product of its digits is 24000, while the sum is 31.

The square root of 45443515 is about 6741.1805345948. The cubic root of 45443515 is about 356.8540571563.

Adding to 45443515 its reverse (51534454), we get a palindrome (96977969).

The spelling of 45443515 in words is "forty-five million, four hundred forty-three thousand, five hundred fifteen".