45142500 has 120 divisors (see below), whose sum is σ = 142054528. Its totient is φ = 11088000.

The previous prime is 45142457. The next prime is 45142519. The reversal of 45142500 is 524154.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 97269 + ... + 97731.

Almost surely, 2^45142500 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45142500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71027264).

45142500 is an abundant number, since it is smaller than the sum of its proper divisors (96912028).

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

45142500 is a wasteful number, since it uses less digits than its factorization.

45142500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 503 (or 486 counting only the distinct ones).

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

The square root of 45142500 is about 6718.8168601324. The cubic root of 45142500 is about 356.0643846854.

Adding to 45142500 its reverse (524154), we get a palindrome (45666654).

The spelling of 45142500 in words is "forty-five million, one hundred forty-two thousand, five hundred".