1301664140 has 24 divisors (see below), whose sum is σ = 3123994272. Its totient is φ = 446284800.

The previous prime is 1301664131. The next prime is 1301664197. The reversal of 1301664140 is 414661031.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4648661 + ... + 4648940.

It is an arithmetic number, because the mean of its divisors is an integer number (130166428).

Almost surely, 2^1301664140 is an apocalyptic number.

1301664140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1301664140 is an abundant number, since it is smaller than the sum of its proper divisors (1822330132).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1301664140 is a wasteful number, since it uses less digits than its factorization.

1301664140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9297617 (or 9297615 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 1301664140 is about 36078.5828435652. The cubic root of 1301664140 is about 1091.8583846285.

The spelling of 1301664140 in words is "one billion, three hundred one million, six hundred sixty-four thousand, one hundred forty".