100245810 has 32 divisors (see below), whose sum is σ = 274960512. Its totient is φ = 22913280.

The previous prime is 100245793. The next prime is 100245811. The reversal of 100245810 is 18542001.

It is a super-2 number, since 2×100245810² = 20098444845112200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (100245811) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 238471 + ... + 238890.

It is an arithmetic number, because the mean of its divisors is an integer number (8592516).

Almost surely, 2^100245810 is an apocalyptic number.

100245810 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

100245810 is an abundant number, since it is smaller than the sum of its proper divisors (174714702).

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

100245810 is a wasteful number, since it uses less digits than its factorization.

100245810 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 477378.

The product of its (nonzero) digits is 320, while the sum is 21.

The square root of 100245810 is about 10012.2829564490. The cubic root of 100245810 is about 464.5388884847.

Adding to 100245810 its reverse (18542001), we get a palindrome (118787811).

The spelling of 100245810 in words is "one hundred million, two hundred forty-five thousand, eight hundred ten".