45551142 has 48 divisors (see below), whose sum is σ = 121474080. Its totient is φ = 12013056.

The previous prime is 45551137. The next prime is 45551153. The reversal of 45551142 is 24115554.

45551142 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12267 + ... + 15542.

It is an arithmetic number, because the mean of its divisors is an integer number (2530710).

Almost surely, 2^45551142 is an apocalyptic number.

45551142 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

45551142 is an abundant number, since it is smaller than the sum of its proper divisors (75922938).

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

45551142 is a wasteful number, since it uses less digits than its factorization.

45551142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27837 (or 27834 counting only the distinct ones).

The product of its digits is 4000, while the sum is 27.

The square root of 45551142 is about 6749.1586142274. The cubic root of 45551142 is about 357.1355557060.

Adding to 45551142 its reverse (24115554), we get a palindrome (69666696).

The spelling of 45551142 in words is "forty-five million, five hundred fifty-one thousand, one hundred forty-two".