145099828 has 12 divisors (see below), whose sum is σ = 268861572. Its totient is φ = 68282240.

The previous prime is 145099817. The next prime is 145099831. The reversal of 145099828 is 828990541.

It can be written as a sum of positive squares in 2 ways, for example, as 123921424 + 21178404 = 11132^2 + 4602^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1066843 + ... + 1066978.

It is an arithmetic number, because the mean of its divisors is an integer number (22405131).

Almost surely, 2^145099828 is an apocalyptic number.

It is an amenable number.

145099828 is a deficient number, since it is larger than the sum of its proper divisors (123761744).

145099828 is a wasteful number, since it uses less digits than its factorization.

145099828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2133842 (or 2133840 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 46.

The square root of 145099828 is about 12045.7389976705. The cubic root of 145099828 is about 525.4793239985.

The spelling of 145099828 in words is "one hundred forty-five million, ninety-nine thousand, eight hundred twenty-eight".