1051969875161 has 2 divisors, whose sum is σ = 1051969875162. Its totient is φ = 1051969875160.

The previous prime is 1051969874987. The next prime is 1051969875167. The reversal of 1051969875161 is 1615789691501.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 886316805136 + 165653070025 = 941444^2 + 407005^2 .

It is a cyclic number.

It is not a de Polignac number, because 1051969875161 - 2²⁶ = 1051902766297 is a prime.

It is a super-2 number, since 2×1051969875161² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1051969875161.

It is not a weakly prime, because it can be changed into another prime (1051969875167) 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, 525984937580 + 525984937581.

It is an arithmetic number, because the mean of its divisors is an integer number (525984937581).

Almost surely, 2^{1051969875161} is an apocalyptic number.

It is an amenable number.

1051969875161 is a deficient number, since it is larger than the sum of its proper divisors (1).

1051969875161 is an equidigital number, since it uses as much as digits as its factorization.

1051969875161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4082400, while the sum is 59.

The spelling of 1051969875161 in words is "one trillion, fifty-one billion, nine hundred sixty-nine million, eight hundred seventy-five thousand, one hundred sixty-one".