101265649 has 4 divisors (see below), whose sum is σ = 106595440. Its totient is φ = 95935860.

The previous prime is 101265641. The next prime is 101265677. The reversal of 101265649 is 946562101.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 946562101 = 1123 ⋅842887.

It is a cyclic number.

It is not a de Polignac number, because 101265649 - 2³ = 101265641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101265641) 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 3 ways as a sum of consecutive naturals, for example, 2664867 + ... + 2664904.

It is an arithmetic number, because the mean of its divisors is an integer number (26648860).

Almost surely, 2^101265649 is an apocalyptic number.

101265649 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

101265649 is a deficient number, since it is larger than the sum of its proper divisors (5329791).

101265649 is an equidigital number, since it uses as much as digits as its factorization.

101265649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5329790.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 101265649 is about 10063.0834737669. The cubic root of 101265649 is about 466.1088870420.

The spelling of 101265649 in words is "one hundred one million, two hundred sixty-five thousand, six hundred forty-nine".