101320249 has 2 divisors, whose sum is σ = 101320250. Its totient is φ = 101320248.

The previous prime is 101320237. The next prime is 101320321. The reversal of 101320249 is 942023101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 98406400 + 2913849 = 9920^2 + 1707^2 .

It is a cyclic number.

It is not a de Polignac number, because 101320249 - 2⁹ = 101319737 is a prime.

It is not a weakly prime, because it can be changed into another prime (101320649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50660124 + 50660125.

It is an arithmetic number, because the mean of its divisors is an integer number (50660125).

Almost surely, 2^101320249 is an apocalyptic number.

It is an amenable number.

101320249 is a deficient number, since it is larger than the sum of its proper divisors (1).

101320249 is an equidigital number, since it uses as much as digits as its factorization.

101320249 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 22.

The square root of 101320249 is about 10065.7959943563. The cubic root of 101320249 is about 466.1926435541.

The spelling of 101320249 in words is "one hundred one million, three hundred twenty thousand, two hundred forty-nine".