101485861 has 2 divisors, whose sum is σ = 101485862. Its totient is φ = 101485860.

The previous prime is 101485829. The next prime is 101485871. The reversal of 101485861 is 168584101.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 100620961 + 864900 = 10031^2 + 930^2 .

It is a cyclic number.

It is not a de Polignac number, because 101485861 - 2⁵ = 101485829 is a prime.

It is a super-2 number, since 2×101485861² = 20598759965822642, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101485871) 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 as a sum of consecutive naturals, namely, 50742930 + 50742931.

It is an arithmetic number, because the mean of its divisors is an integer number (50742931).

Almost surely, 2^101485861 is an apocalyptic number.

It is an amenable number.

101485861 is a deficient number, since it is larger than the sum of its proper divisors (1).

101485861 is an equidigital number, since it uses as much as digits as its factorization.

101485861 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7680, while the sum is 34.

The square root of 101485861 is about 10074.0191085783. The cubic root of 101485861 is about 466.4465087949.

The spelling of 101485861 in words is "one hundred one million, four hundred eighty-five thousand, eight hundred sixty-one".