100245857 has 4 divisors (see below), whose sum is σ = 102577200. Its totient is φ = 97914516.

The previous prime is 100245853. The next prime is 100245931. The reversal of 100245857 is 758542001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 100245857 - 2² = 100245853 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100245853) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1165607 + ... + 1165692.

It is an arithmetic number, because the mean of its divisors is an integer number (25644300).

Almost surely, 2^100245857 is an apocalyptic number.

It is an amenable number.

100245857 is a deficient number, since it is larger than the sum of its proper divisors (2331343).

100245857 is an equidigital number, since it uses as much as digits as its factorization.

100245857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2331342.

The product of its (nonzero) digits is 11200, while the sum is 32.

The square root of 100245857 is about 10012.2853035658. The cubic root of 100245857 is about 464.5389610840.

Adding to 100245857 its reverse (758542001), we get a palindrome (858787858).

The spelling of 100245857 in words is "one hundred million, two hundred forty-five thousand, eight hundred fifty-seven".