1308948705 has 24 divisors (see below), whose sum is σ = 2269804992. Its totient is φ = 697810464.

The previous prime is 1308948679. The next prime is 1308948713. The reversal of 1308948705 is 5078498031.

It is not a de Polignac number, because 1308948705 - 2¹¹ = 1308946657 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 138852 + ... + 147978.

It is an arithmetic number, because the mean of its divisors is an integer number (94575208).

Almost surely, 2^1308948705 is an apocalyptic number.

1308948705 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1308948705 is a deficient number, since it is larger than the sum of its proper divisors (960856287).

1308948705 is a wasteful number, since it uses less digits than its factorization.

1308948705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12325 (or 12322 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 45.

The square root of 1308948705 is about 36179.3961392393. The cubic root of 1308948705 is about 1093.8914031930.

The spelling of 1308948705 in words is "one billion, three hundred eight million, nine hundred forty-eight thousand, seven hundred five".