1250130181 has 2 divisors, whose sum is σ = 1250130182. Its totient is φ = 1250130180.

The previous prime is 1250130179. The next prime is 1250130191. The reversal of 1250130181 is 1810310521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1139670081 + 110460100 = 33759^2 + 10510^2 .

It is an emirp because it is prime and its reverse (1810310521) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1250130181 - 2¹ = 1250130179 is a prime.

It is a super-2 number, since 2×1250130181² = 3125650938894185522, which contains 22 as substring.

Together with 1250130179, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1250130191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 625065090 + 625065091.

It is an arithmetic number, because the mean of its divisors is an integer number (625065091).

Almost surely, 2^1250130181 is an apocalyptic number.

It is an amenable number.

1250130181 is a deficient number, since it is larger than the sum of its proper divisors (1).

1250130181 is an equidigital number, since it uses as much as digits as its factorization.

1250130181 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 240, while the sum is 22.

The square root of 1250130181 is about 35357.1800487539. The cubic root of 1250130181 is about 1077.2547392462.

The spelling of 1250130181 in words is "one billion, two hundred fifty million, one hundred thirty thousand, one hundred eighty-one".