105156212653 has 2 divisors, whose sum is σ = 105156212654. Its totient is φ = 105156212652.

The previous prime is 105156212647. The next prime is 105156212663. The reversal of 105156212653 is 356212651501.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 97582513924 + 7573698729 = 312382^2 + 87027^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-105156212653 is a prime.

It is a super-2 number, since 2×105156212653² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (105156212663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52578106326 + 52578106327.

It is an arithmetic number, because the mean of its divisors is an integer number (52578106327).

Almost surely, 2^105156212653 is an apocalyptic number.

It is an amenable number.

105156212653 is a deficient number, since it is larger than the sum of its proper divisors (1).

105156212653 is an equidigital number, since it uses as much as digits as its factorization.

105156212653 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54000, while the sum is 37.

The spelling of 105156212653 in words is "one hundred five billion, one hundred fifty-six million, two hundred twelve thousand, six hundred fifty-three".