100012245 has 16 divisors (see below), whose sum is σ = 162644352. Its totient is φ = 52464960.

The previous prime is 100012223. The next prime is 100012247. The reversal of 100012245 is 542210001.

It is not a de Polignac number, because 100012245 - 2⁹ = 100011733 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100012247) 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, 53737 + ... + 55566.

It is an arithmetic number, because the mean of its divisors is an integer number (10165272).

Almost surely, 2^100012245 is an apocalyptic number.

100012245 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

100012245 is a deficient number, since it is larger than the sum of its proper divisors (62632107).

100012245 is a wasteful number, since it uses less digits than its factorization.

100012245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109372.

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 100012245 is about 10000.6122312586. The cubic root of 100012245 is about 464.1778280065.

Adding to 100012245 its reverse (542210001), we get a palindrome (642222246).

It can be divided in two parts, 10001 and 2245, that added together give a triangular number (12246 = T₁₅₆).

The spelling of 100012245 in words is "one hundred million, twelve thousand, two hundred forty-five".