101248949 has 4 divisors (see below), whose sum is σ = 101269164. Its totient is φ = 101228736.

The previous prime is 101248943. The next prime is 101248963. The reversal of 101248949 is 949842101.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 16056049 + 85192900 = 4007^2 + 9230^2 .

It is a cyclic number.

It is not a de Polignac number, because 101248949 - 2⁴ = 101248933 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101248943) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3629 + ... + 14685.

It is an arithmetic number, because the mean of its divisors is an integer number (25317291).

Almost surely, 2^101248949 is an apocalyptic number.

It is an amenable number.

101248949 is a deficient number, since it is larger than the sum of its proper divisors (20215).

101248949 is an equidigital number, since it uses as much as digits as its factorization.

101248949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20214.

The product of its (nonzero) digits is 20736, while the sum is 38.

The square root of 101248949 is about 10062.2536740037. The cubic root of 101248949 is about 466.0832631955.

The spelling of 101248949 in words is "one hundred one million, two hundred forty-eight thousand, nine hundred forty-nine".