1252130143 has 12 divisors (see below), whose sum is σ = 1436151024. Its totient is φ = 1088806400.

The previous prime is 1252130137. The next prime is 1252130147. The reversal of 1252130143 is 3410312521.

It is a happy number.

It is not a de Polignac number, because 1252130143 - 2¹⁷ = 1251999071 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1252130147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 222178 + ... + 227743.

It is an arithmetic number, because the mean of its divisors is an integer number (119679252).

Almost surely, 2^1252130143 is an apocalyptic number.

1252130143 is a deficient number, since it is larger than the sum of its proper divisors (184020881).

1252130143 is a wasteful number, since it uses less digits than its factorization.

1252130143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 449966 (or 449955 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 1252130143 is about 35385.4510074409. The cubic root of 1252130143 is about 1077.8288982917.

Adding to 1252130143 its reverse (3410312521), we get a palindrome (4662442664).

The spelling of 1252130143 in words is "one billion, two hundred fifty-two million, one hundred thirty thousand, one hundred forty-three".