45142812 has 192 divisors, whose sum is σ = 143001600. Its totient is φ = 12130560.

The previous prime is 45142807. The next prime is 45142829. The reversal of 45142812 is 21824154.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 571389 + ... + 571467.

It is an arithmetic number, because the mean of its divisors is an integer number (744800).

Almost surely, 2^45142812 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 45142812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71500800).

45142812 is an abundant number, since it is smaller than the sum of its proper divisors (97858788).

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

45142812 is a wasteful number, since it uses less digits than its factorization.

45142812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153 (or 145 counting only the distinct ones).

The product of its digits is 2560, while the sum is 27.

The square root of 45142812 is about 6718.8400784659. The cubic root of 45142812 is about 356.0652049902.

Adding to 45142812 its reverse (21824154), we get a palindrome (66966966).

It can be divided in two parts, 45142 and 812, that added together give a palindrome (45954).

The spelling of 45142812 in words is "forty-five million, one hundred forty-two thousand, eight hundred twelve".