1252310543 has 16 divisors (see below), whose sum is σ = 1400061696. Its totient is φ = 1110291840.

The previous prime is 1252310537. The next prime is 1252310597. The reversal of 1252310543 is 3450132521.

It is a happy number.

It is a Cunningham number, because it is equal to 35388²-1.

It is a cyclic number.

It is not a de Polignac number, because 1252310543 - 2¹⁴ = 1252294159 is a prime.

It is a super-2 number, since 2×1252310543² = 3136563392217909698, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1252310743) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 387671 + ... + 390887.

It is an arithmetic number, because the mean of its divisors is an integer number (87503856).

Almost surely, 2^1252310543 is an apocalyptic number.

1252310543 is a deficient number, since it is larger than the sum of its proper divisors (147751153).

1252310543 is a wasteful number, since it uses less digits than its factorization.

1252310543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4094.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 1252310543 is about 35387.9999858709. Note that the first 4 decimals coincide. The cubic root of 1252310543 is about 1077.8806583522.

The spelling of 1252310543 in words is "one billion, two hundred fifty-two million, three hundred ten thousand, five hundred forty-three".