2145125151149 has 2 divisors, whose sum is σ = 2145125151150. Its totient is φ = 2145125151148.

The previous prime is 2145125151133. The next prime is 2145125151209. The reversal of 2145125151149 is 9411515215412.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2038307302249 + 106817848900 = 1427693^2 + 326830^2 .

It is a cyclic number.

It is not a de Polignac number, because 2145125151149 - 2⁴ = 2145125151133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2145125151749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1072562575574 + 1072562575575.

It is an arithmetic number, because the mean of its divisors is an integer number (1072562575575).

Almost surely, 2^{2145125151149} is an apocalyptic number.

It is an amenable number.

2145125151149 is a deficient number, since it is larger than the sum of its proper divisors (1).

2145125151149 is an equidigital number, since it uses as much as digits as its factorization.

2145125151149 is an evil number, because the sum of its binary digits is even.

The product of its digits is 72000, while the sum is 41.

The spelling of 2145125151149 in words is "two trillion, one hundred forty-five billion, one hundred twenty-five million, one hundred fifty-one thousand, one hundred forty-nine".