1301343989 has 8 divisors (see below), whose sum is σ = 1431382080. Its totient is φ = 1183038780.

The previous prime is 1301343973. The next prime is 1301344001. The reversal of 1301343989 is 9893431031.

It is not a de Polignac number, because 1301343989 - 2⁴ = 1301343973 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1301343689) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 487529 + ... + 490190.

It is an arithmetic number, because the mean of its divisors is an integer number (178922760).

Almost surely, 2^1301343989 is an apocalyptic number.

It is an amenable number.

1301343989 is a deficient number, since it is larger than the sum of its proper divisors (130038091).

1301343989 is an frugal number, since it uses more digits than its factorization.

1301343989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 977752 (or 977730 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 41.

The square root of 1301343989 is about 36074.1457140706. The cubic root of 1301343989 is about 1091.7688612239.

The spelling of 1301343989 in words is "one billion, three hundred one million, three hundred forty-three thousand, nine hundred eighty-nine".