1351332139 has 2 divisors, whose sum is σ = 1351332140. Its totient is φ = 1351332138.

The previous prime is 1351332077. The next prime is 1351332217. The reversal of 1351332139 is 9312331531.

It is a weak prime.

It is an emirp because it is prime and its reverse (9312331531) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1351332139 - 2²¹ = 1349234987 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1351332139.

It is not a weakly prime, because it can be changed into another prime (1351332739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 675666069 + 675666070.

It is an arithmetic number, because the mean of its divisors is an integer number (675666070).

Almost surely, 2^1351332139 is an apocalyptic number.

1351332139 is a deficient number, since it is larger than the sum of its proper divisors (1).

1351332139 is an equidigital number, since it uses as much as digits as its factorization.

1351332139 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7290, while the sum is 31.

The square root of 1351332139 is about 36760.4697875313. The cubic root of 1351332139 is about 1105.5728591242.

The spelling of 1351332139 in words is "one billion, three hundred fifty-one million, three hundred thirty-two thousand, one hundred thirty-nine".