245154233161 has 2 divisors, whose sum is σ = 245154233162. Its totient is φ = 245154233160.

The previous prime is 245154233117. The next prime is 245154233171. The reversal of 245154233161 is 161332451542.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 239806090000 + 5348143161 = 489700^2 + 73131^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-245154233161 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 245154233161.

It is not a weakly prime, because it can be changed into another prime (245154233171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122577116580 + 122577116581.

It is an arithmetic number, because the mean of its divisors is an integer number (122577116581).

Almost surely, 2^245154233161 is an apocalyptic number.

It is an amenable number.

245154233161 is a deficient number, since it is larger than the sum of its proper divisors (1).

245154233161 is an equidigital number, since it uses as much as digits as its factorization.

245154233161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 86400, while the sum is 37.

The spelling of 245154233161 in words is "two hundred forty-five billion, one hundred fifty-four million, two hundred thirty-three thousand, one hundred sixty-one".