245257100 has 72 divisors (see below), whose sum is σ = 590587200. Its totient is φ = 87649600.

The previous prime is 245257099. The next prime is 245257141. The reversal of 245257100 is 1752542.

It is a self number, because there is not a number n which added to its sum of digits gives 245257100.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 63011 + ... + 66789.

It is an arithmetic number, because the mean of its divisors is an integer number (8202600).

Almost surely, 2^245257100 is an apocalyptic number.

245257100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 245257100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (295293600).

245257100 is an abundant number, since it is smaller than the sum of its proper divisors (345330100).

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

245257100 is a wasteful number, since it uses less digits than its factorization.

245257100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3863 (or 3856 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 26.

The square root of 245257100 is about 15660.6864472794. The cubic root of 245257100 is about 625.9512767149.

The spelling of 245257100 in words is "two hundred forty-five million, two hundred fifty-seven thousand, one hundred".