10154861 has 2 divisors, whose sum is σ = 10154862. Its totient is φ = 10154860.

The previous prime is 10154857. The next prime is 10154869. The reversal of 10154861 is 16845101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10118761 + 36100 = 3181^2 + 190^2 .

It is a cyclic number.

It is not a de Polignac number, because 10154861 - 2² = 10154857 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 10154861.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10154869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5077430 + 5077431.

It is an arithmetic number, because the mean of its divisors is an integer number (5077431).

Almost surely, 2^10154861 is an apocalyptic number.

It is an amenable number.

10154861 is a deficient number, since it is larger than the sum of its proper divisors (1).

10154861 is an equidigital number, since it uses as much as digits as its factorization.

10154861 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 960, while the sum is 26.

The square root of 10154861 is about 3186.6692642946. The cubic root of 10154861 is about 216.5499034247.

Adding to 10154861 its reverse (16845101), we get a palindrome (26999962).

The spelling of 10154861 in words is "ten million, one hundred fifty-four thousand, eight hundred sixty-one".