45002 has 4 divisors (see below), whose sum is σ = 67506. Its totient is φ = 22500.

The previous prime is 44987. The next prime is 45007. The reversal of 45002 is 20054.

45002 = T₁₄₈ + T₁₄₉ + ... + T₁₅₁.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 22801 + 22201 = 151^2 + 149^2 .

It is not an unprimeable number, because it can be changed into a prime (45007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11249 + ... + 11252.

2⁴⁵⁰⁰² is an apocalyptic number.

45002 is a deficient number, since it is larger than the sum of its proper divisors (22504).

45002 is a wasteful number, since it uses less digits than its factorization.

45002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22503.

The product of its (nonzero) digits is 40, while the sum is 11.

The square root of 45002 is about 212.1367483488. The cubic root of 45002 is about 35.5694599843.

Adding to 45002 its reverse (20054), we get a palindrome (65056).

The spelling of 45002 in words is "forty-five thousand, two".