1249481699 has 8 divisors (see below), whose sum is σ = 1282756608. Its totient is φ = 1216485640.

The previous prime is 1249481671. The next prime is 1249481713. The reversal of 1249481699 is 9961849421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1249481699 is a prime.

It is a super-2 number, since 2×1249481699² = 3122409032271853202, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1249481699.

It is not an unprimeable number, because it can be changed into a prime (1249481609) 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 7 ways as a sum of consecutive naturals, for example, 60617 + ... + 78570.

It is an arithmetic number, because the mean of its divisors is an integer number (160344576).

Almost surely, 2^1249481699 is an apocalyptic number.

1249481699 is a deficient number, since it is larger than the sum of its proper divisors (33274909).

1249481699 is a wasteful number, since it uses less digits than its factorization.

1249481699 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139425.

The product of its digits is 1119744, while the sum is 53.

The square root of 1249481699 is about 35348.0084163168. The cubic root of 1249481699 is about 1077.0684383459.

The spelling of 1249481699 in words is "one billion, two hundred forty-nine million, four hundred eighty-one thousand, six hundred ninety-nine".