45005331 has 32 divisors (see below), whose sum is σ = 70898688. Its totient is φ = 24860160.

The previous prime is 45005329. The next prime is 45005333. The reversal of 45005331 is 13350054.

It is an interprime number because it is at equal distance from previous prime (45005329) and next prime (45005333).

It is not a de Polignac number, because 45005331 - 2¹ = 45005329 is a prime.

It is a super-2 number, since 2×45005331² = 4050959636839122, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 45005298 and 45005307.

It is not an unprimeable number, because it can be changed into a prime (45005333) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 143631 + ... + 143943.

It is an arithmetic number, because the mean of its divisors is an integer number (2215584).

Almost surely, 2^45005331 is an apocalyptic number.

45005331 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

45005331 is a deficient number, since it is larger than the sum of its proper divisors (25893357).

45005331 is a wasteful number, since it uses less digits than its factorization.

45005331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 531.

The product of its (nonzero) digits is 900, while the sum is 21.

The square root of 45005331 is about 6708.6012700115. The cubic root of 45005331 is about 355.7033756708.

Adding to 45005331 its reverse (13350054), we get a palindrome (58355385).

The spelling of 45005331 in words is "forty-five million, five thousand, three hundred thirty-one".