1299182949 has 32 divisors (see below), whose sum is σ = 1987399680. Its totient is φ = 838252800.

The previous prime is 1299182947. The next prime is 1299182957. The reversal of 1299182949 is 9492819921.

It is not a de Polignac number, because 1299182949 - 2¹ = 1299182947 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1299182895 and 1299182904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1299182947) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 135969 + ... + 145209.

It is an arithmetic number, because the mean of its divisors is an integer number (62106240).

Almost surely, 2^1299182949 is an apocalyptic number.

It is an amenable number.

1299182949 is a deficient number, since it is larger than the sum of its proper divisors (688216731).

1299182949 is a wasteful number, since it uses less digits than its factorization.

1299182949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9418 (or 9412 counting only the distinct ones).

The product of its digits is 839808, while the sum is 54.

The square root of 1299182949 is about 36044.1805150291. The cubic root of 1299182949 is about 1091.1641880539.

The spelling of 1299182949 in words is "one billion, two hundred ninety-nine million, one hundred eighty-two thousand, nine hundred forty-nine".