1249339753 has 2 divisors, whose sum is σ = 1249339754. Its totient is φ = 1249339752.

The previous prime is 1249339681. The next prime is 1249339781. The reversal of 1249339753 is 3579339421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 719741584 + 529598169 = 26828^2 + 23013^2 .

It is a cyclic number.

It is not a de Polignac number, because 1249339753 - 2¹³ = 1249331561 is a prime.

It is a super-2 number, since 2×1249339753² = 3121699636852202018, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1249339453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 624669876 + 624669877.

It is an arithmetic number, because the mean of its divisors is an integer number (624669877).

Almost surely, 2^1249339753 is an apocalyptic number.

It is an amenable number.

1249339753 is a deficient number, since it is larger than the sum of its proper divisors (1).

1249339753 is an equidigital number, since it uses as much as digits as its factorization.

1249339753 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 612360, while the sum is 46.

The square root of 1249339753 is about 35346.0005233973. Note that the first 3 decimals coincide. The cubic root of 1249339753 is about 1077.0276504078.

The spelling of 1249339753 in words is "one billion, two hundred forty-nine million, three hundred thirty-nine thousand, seven hundred fifty-three".