1252542937 has 2 divisors, whose sum is σ = 1252542938. Its totient is φ = 1252542936.

The previous prime is 1252542911. The next prime is 1252542943. The reversal of 1252542937 is 7392452521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1092368601 + 160174336 = 33051^2 + 12656^2 .

It is an emirp because it is prime and its reverse (7392452521) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1252542937 - 2¹¹ = 1252540889 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1252542937.

It is not a weakly prime, because it can be changed into another prime (1252542037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 626271468 + 626271469.

It is an arithmetic number, because the mean of its divisors is an integer number (626271469).

Almost surely, 2^1252542937 is an apocalyptic number.

It is an amenable number.

1252542937 is a deficient number, since it is larger than the sum of its proper divisors (1).

1252542937 is an equidigital number, since it uses as much as digits as its factorization.

1252542937 is an evil number, because the sum of its binary digits is even.

The product of its digits is 151200, while the sum is 40.

The square root of 1252542937 is about 35391.2833477397. The cubic root of 1252542937 is about 1077.9473291169.

The spelling of 1252542937 in words is "one billion, two hundred fifty-two million, five hundred forty-two thousand, nine hundred thirty-seven".