2151233245177 has 2 divisors, whose sum is σ = 2151233245178. Its totient is φ = 2151233245176.

The previous prime is 2151233245171. The next prime is 2151233245223. The reversal of 2151233245177 is 7715423321512.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1773968265216 + 377264979961 = 1331904^2 + 614219^2 .

It is a cyclic number.

It is not a de Polignac number, because 2151233245177 - 2¹¹ = 2151233243129 is a prime.

It is a super-2 number, since 2×2151233245177² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2151233245171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1075616622588 + 1075616622589.

It is an arithmetic number, because the mean of its divisors is an integer number (1075616622589).

Almost surely, 2^{2151233245177} is an apocalyptic number.

It is an amenable number.

2151233245177 is a deficient number, since it is larger than the sum of its proper divisors (1).

2151233245177 is an equidigital number, since it uses as much as digits as its factorization.

2151233245177 is an evil number, because the sum of its binary digits is even.

The product of its digits is 352800, while the sum is 43.

Adding to 2151233245177 its reverse (7715423321512), we get a palindrome (9866656566689).

The spelling of 2151233245177 in words is "two trillion, one hundred fifty-one billion, two hundred thirty-three million, two hundred forty-five thousand, one hundred seventy-seven".