100245434 has 4 divisors (see below), whose sum is σ = 150368154. Its totient is φ = 50122716.

The previous prime is 100245401. The next prime is 100245473. The reversal of 100245434 is 434542001.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 95981209 + 4264225 = 9797^2 + 2065^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25061357 + ... + 25061360.

Almost surely, 2^100245434 is an apocalyptic number.

100245434 is a deficient number, since it is larger than the sum of its proper divisors (50122720).

100245434 is an equidigital number, since it uses as much as digits as its factorization.

100245434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50122719.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 100245434 is about 10012.2641794951. The cubic root of 100245434 is about 464.5383076895.

Adding to 100245434 its reverse (434542001), we get a palindrome (534787435).

The spelling of 100245434 in words is "one hundred million, two hundred forty-five thousand, four hundred thirty-four".