1351679739 has 4 divisors (see below), whose sum is σ = 1802239656. Its totient is φ = 901119824.

The previous prime is 1351679731. The next prime is 1351679743. The reversal of 1351679739 is 9379761531.

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 1351679739 - 2³ = 1351679731 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1351679691 and 1351679700.

It is not an unprimeable number, because it can be changed into a prime (1351679731) 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, 225279954 + ... + 225279959.

It is an arithmetic number, because the mean of its divisors is an integer number (450559914).

Almost surely, 2^1351679739 is an apocalyptic number.

1351679739 is a deficient number, since it is larger than the sum of its proper divisors (450559917).

1351679739 is an equidigital number, since it uses as much as digits as its factorization.

1351679739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 450559916.

The product of its digits is 1071630, while the sum is 51.

The square root of 1351679739 is about 36765.1973882910. The cubic root of 1351679739 is about 1105.6676456362.

The spelling of 1351679739 in words is "one billion, three hundred fifty-one million, six hundred seventy-nine thousand, seven hundred thirty-nine".