1352140249 has 2 divisors, whose sum is σ = 1352140250. Its totient is φ = 1352140248.

The previous prime is 1352140219. The next prime is 1352140253. The reversal of 1352140249 is 9420412531.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1333710400 + 18429849 = 36520^2 + 4293^2 .

It is a cyclic number.

It is not a de Polignac number, because 1352140249 - 2¹¹ = 1352138201 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1352140249.

It is not a weakly prime, because it can be changed into another prime (1352140219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 676070124 + 676070125.

It is an arithmetic number, because the mean of its divisors is an integer number (676070125).

Almost surely, 2^1352140249 is an apocalyptic number.

It is an amenable number.

1352140249 is a deficient number, since it is larger than the sum of its proper divisors (1).

1352140249 is an equidigital number, since it uses as much as digits as its factorization.

1352140249 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 1352140249 is about 36771.4597072240. The cubic root of 1352140249 is about 1105.7931963812.

The spelling of 1352140249 in words is "one billion, three hundred fifty-two million, one hundred forty thousand, two hundred forty-nine".