101672261 has 4 divisors (see below), whose sum is σ = 102897312. Its totient is φ = 100447212.

The previous prime is 101672243. The next prime is 101672267. The reversal of 101672261 is 162276101.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-101672261 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 101672261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101672267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 612401 + ... + 612566.

It is an arithmetic number, because the mean of its divisors is an integer number (25724328).

Almost surely, 2^101672261 is an apocalyptic number.

It is an amenable number.

101672261 is a deficient number, since it is larger than the sum of its proper divisors (1225051).

101672261 is an equidigital number, since it uses as much as digits as its factorization.

101672261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1225050.

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 101672261 is about 10083.2663854527. The cubic root of 101672261 is about 466.7319096424.

The spelling of 101672261 in words is "one hundred one million, six hundred seventy-two thousand, two hundred sixty-one".