861349095 has 12 divisors (see below), whose sum is σ = 1493005176. Its totient is φ = 459386160.

The previous prime is 861349091. The next prime is 861349123. The reversal of 861349095 is 590943168.

It is a happy number.

It is not a de Polignac number, because 861349095 - 2² = 861349091 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 19141091 = 861349095 / (8 + 6 + 1 + 3 + 4 + 9 + 0 + 9 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 861349095.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (861349091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9570501 + ... + 9570590.

It is an arithmetic number, because the mean of its divisors is an integer number (124417098).

Almost surely, 2^861349095 is an apocalyptic number.

861349095 is a deficient number, since it is larger than the sum of its proper divisors (631656081).

861349095 is a wasteful number, since it uses less digits than its factorization.

861349095 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19141102 (or 19141099 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 45.

The square root of 861349095 is about 29348.7494622854. The cubic root of 861349095 is about 951.4655477511.

The spelling of 861349095 in words is "eight hundred sixty-one million, three hundred forty-nine thousand, ninety-five".