145818100 has 36 divisors (see below), whose sum is σ = 317308684. Its totient is φ = 58164480.

The previous prime is 145818097. The next prime is 145818109. The reversal of 145818100 is 1818541.

It can be written as a sum of positive squares in 6 ways, for example, as 14348944 + 131469156 = 3788^2 + 11466^2 .

It is a super-2 number, since 2×145818100² = 42525836575220000, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145818109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37864 + ... + 41536.

Almost surely, 2^145818100 is an apocalyptic number.

145818100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145818100 is an abundant number, since it is smaller than the sum of its proper divisors (171490584).

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

145818100 is a wasteful number, since it uses less digits than its factorization.

145818100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4084 (or 4077 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 28.

The square root of 145818100 is about 12075.5165520983. The cubic root of 145818100 is about 526.3449716977.

The spelling of 145818100 in words is "one hundred forty-five million, eight hundred eighteen thousand, one hundred".