101213245 has 16 divisors (see below), whose sum is σ = 139265280. Its totient is φ = 69174144.

The previous prime is 101213243. The next prime is 101213249. The reversal of 101213245 is 542312101.

It is a cyclic number.

It is not a de Polignac number, because 101213245 - 2¹ = 101213243 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101213243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6336 + ... + 15574.

It is an arithmetic number, because the mean of its divisors is an integer number (8704080).

Almost surely, 2^101213245 is an apocalyptic number.

It is an amenable number.

101213245 is a deficient number, since it is larger than the sum of its proper divisors (38052035).

101213245 is an equidigital number, since it uses as much as digits as its factorization.

101213245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9564.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 101213245 is about 10060.4793623366. The cubic root of 101213245 is about 466.0284708793.

Adding to 101213245 its reverse (542312101), we get a palindrome (643525346).

It can be divided in two parts, 10121 and 3245, that added together give a triangular number (13366 = T₁₆₃).

The spelling of 101213245 in words is "one hundred one million, two hundred thirteen thousand, two hundred forty-five".