45145002 has 64 divisors (see below), whose sum is σ = 106850304. Its totient is φ = 12450240.

The previous prime is 45144997. The next prime is 45145019. The reversal of 45145002 is 20054154.

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

It is a self number, because there is not a number n which added to its sum of digits gives 45145002.

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, 171523 + ... + 171785.

It is an arithmetic number, because the mean of its divisors is an integer number (1669536).

Almost surely, 2^45145002 is an apocalyptic number.

45145002 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 45145002, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53425152).

45145002 is an abundant number, since it is smaller than the sum of its proper divisors (61705302).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

45145002 is a wasteful number, since it uses less digits than its factorization.

45145002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 403.

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 45145002 is about 6719.0030510486. The cubic root of 45145002 is about 356.0709627927.

Adding to 45145002 its reverse (20054154), we get a palindrome (65199156).

The spelling of 45145002 in words is "forty-five million, one hundred forty-five thousand, two".