101213249 has 2 divisors, whose sum is σ = 101213250. Its totient is φ = 101213248.

The previous prime is 101213243. The next prime is 101213279. The reversal of 101213249 is 942312101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 101103025 + 110224 = 10055^2 + 332^2 .

It is a cyclic number.

It is not a de Polignac number, because 101213249 - 2¹² = 101209153 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (101213243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50606624 + 50606625.

It is an arithmetic number, because the mean of its divisors is an integer number (50606625).

Almost surely, 2^101213249 is an apocalyptic number.

It is an amenable number.

101213249 is a deficient number, since it is larger than the sum of its proper divisors (1).

101213249 is an equidigital number, since it uses as much as digits as its factorization.

101213249 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 101213249 is about 10060.4795611343. The cubic root of 101213249 is about 466.0284770185.

The spelling of 101213249 in words is "one hundred one million, two hundred thirteen thousand, two hundred forty-nine".