1249435229459 has 4 divisors (see below), whose sum is σ = 1249667170104. Its totient is φ = 1249203288816.

The previous prime is 1249435229437. The next prime is 1249435229479. The reversal of 1249435229459 is 9549225349421.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1249435229459 is a prime.

It is a super-2 number, since 2×1249435229459² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1249435229398 and 1249435229407.

It is not an unprimeable number, because it can be changed into a prime (1249435229479) 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 in 3 ways as a sum of consecutive naturals, for example, 115962242 + ... + 115973015.

It is an arithmetic number, because the mean of its divisors is an integer number (312416792526).

Almost surely, 2^{1249435229459} is an apocalyptic number.

1249435229459 is a deficient number, since it is larger than the sum of its proper divisors (231940645).

1249435229459 is an equidigital number, since it uses as much as digits as its factorization.

1249435229459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231940644.

The product of its digits is 27993600, while the sum is 59.

The spelling of 1249435229459 in words is "one trillion, two hundred forty-nine billion, four hundred thirty-five million, two hundred twenty-nine thousand, four hundred fifty-nine".