100047225 has 12 divisors (see below), whose sum is σ = 165411536. Its totient is φ = 53358480.

The previous prime is 100047221. The next prime is 100047229. The reversal of 100047225 is 522740001.

It is an interprime number because it is at equal distance from previous prime (100047221) and next prime (100047229).

It is not a de Polignac number, because 100047225 - 2² = 100047221 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100047221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 666907 + ... + 667056.

Almost surely, 2^100047225 is an apocalyptic number.

100047225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

100047225 is a deficient number, since it is larger than the sum of its proper divisors (65364311).

100047225 is a wasteful number, since it uses less digits than its factorization.

100047225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1333976 (or 1333971 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 21.

The square root of 100047225 is about 10002.3609712907. The cubic root of 100047225 is about 464.2319382067.

Adding to 100047225 its reverse (522740001), we get a palindrome (622787226).

The spelling of 100047225 in words is "one hundred million, forty-seven thousand, two hundred twenty-five".