245405100 has 36 divisors (see below), whose sum is σ = 710039624. Its totient is φ = 65441280.

The previous prime is 245405099. The next prime is 245405113. The reversal of 245405100 is 1504542.

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 11 ways as a sum of consecutive naturals, for example, 408709 + ... + 409308.

Almost surely, 2^245405100 is an apocalyptic number.

245405100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

245405100 is an abundant number, since it is smaller than the sum of its proper divisors (464634524).

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

245405100 is a wasteful number, since it uses less digits than its factorization.

245405100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 818034 (or 818027 counting only the distinct ones).

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

The square root of 245405100 is about 15665.4109425830. The cubic root of 245405100 is about 626.0771611583.

Adding to 245405100 its reverse (1504542), we get a palindrome (246909642).

The spelling of 245405100 in words is "two hundred forty-five million, four hundred five thousand, one hundred".