861172301 has 16 divisors (see below), whose sum is σ = 949449600. Its totient is φ = 774607680.

The previous prime is 861172297. The next prime is 861172303. The reversal of 861172301 is 103271168.

861172301 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 861172301 - 2² = 861172297 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (861172303) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 430235 + ... + 432231.

It is an arithmetic number, because the mean of its divisors is an integer number (59340600).

Almost surely, 2^861172301 is an apocalyptic number.

It is an amenable number.

861172301 is a deficient number, since it is larger than the sum of its proper divisors (88277299).

861172301 is a wasteful number, since it uses less digits than its factorization.

861172301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2404.

The product of its (nonzero) digits is 2016, while the sum is 29.

The square root of 861172301 is about 29345.7373565566. The cubic root of 861172301 is about 951.4004464230.

The spelling of 861172301 in words is "eight hundred sixty-one million, one hundred seventy-two thousand, three hundred one".