1312006949 has 12 divisors (see below), whose sum is σ = 1444675680. Its totient is φ = 1181673360.

The previous prime is 1312006921. The next prime is 1312006973. The reversal of 1312006949 is 9496002131.

It is a de Polignac number, because none of the positive numbers 2^k-1312006949 is a prime.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312006919) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 125672 + ... + 135710.

It is an arithmetic number, because the mean of its divisors is an integer number (120389640).

Almost surely, 2^1312006949 is an apocalyptic number.

It is an amenable number.

1312006949 is a deficient number, since it is larger than the sum of its proper divisors (132668731).

1312006949 is a wasteful number, since it uses less digits than its factorization.

1312006949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10268 (or 10159 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 35.

The square root of 1312006949 is about 36221.6364760070. The cubic root of 1312006949 is about 1094.7426677188.

The spelling of 1312006949 in words is "one billion, three hundred twelve million, six thousand, nine hundred forty-nine".