1301397739 has 4 divisors (see below), whose sum is σ = 1301536656. Its totient is φ = 1301258824.

The previous prime is 1301397697. The next prime is 1301397803. The reversal of 1301397739 is 9377931031.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1301397739 - 2¹¹ = 1301395691 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1301397695 and 1301397704.

It is not an unprimeable number, because it can be changed into a prime (1301317739) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54304 + ... + 74509.

It is an arithmetic number, because the mean of its divisors is an integer number (325384164).

Almost surely, 2^1301397739 is an apocalyptic number.

1301397739 is a deficient number, since it is larger than the sum of its proper divisors (138917).

1301397739 is a wasteful number, since it uses less digits than its factorization.

1301397739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138916.

The product of its (nonzero) digits is 107163, while the sum is 43.

The square root of 1301397739 is about 36074.8906997651. The cubic root of 1301397739 is about 1091.7838922915.

The spelling of 1301397739 in words is "one billion, three hundred one million, three hundred ninety-seven thousand, seven hundred thirty-nine".