100225142 has 4 divisors (see below), whose sum is σ = 150337716. Its totient is φ = 50112570.

The previous prime is 100225121. The next prime is 100225159. The reversal of 100225142 is 241522001.

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

It is a self number, because there is not a number n which added to its sum of digits gives 100225142.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25056284 + ... + 25056287.

It is an arithmetic number, because the mean of its divisors is an integer number (37584429).

Almost surely, 2^100225142 is an apocalyptic number.

100225142 is a deficient number, since it is larger than the sum of its proper divisors (50112574).

100225142 is an equidigital number, since it uses as much as digits as its factorization.

100225142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50112573.

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 100225142 is about 10011.2507710076. The cubic root of 100225142 is about 464.5069611331.

Adding to 100225142 its reverse (241522001), we get a palindrome (341747143).

The spelling of 100225142 in words is "one hundred million, two hundred twenty-five thousand, one hundred forty-two".