1389151513 has 2 divisors, whose sum is σ = 1389151514. Its totient is φ = 1389151512.

The previous prime is 1389151487. The next prime is 1389151553. The reversal of 1389151513 is 3151519831.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 759994624 + 629156889 = 27568^2 + 25083^2 .

It is a cyclic number.

It is not a de Polignac number, because 1389151513 - 2²⁵ = 1355597081 is a prime.

It is not a weakly prime, because it can be changed into another prime (1389151553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 694575756 + 694575757.

It is an arithmetic number, because the mean of its divisors is an integer number (694575757).

Almost surely, 2^1389151513 is an apocalyptic number.

It is an amenable number.

1389151513 is a deficient number, since it is larger than the sum of its proper divisors (1).

1389151513 is an equidigital number, since it uses as much as digits as its factorization.

1389151513 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16200, while the sum is 37.

The square root of 1389151513 is about 37271.3229306393. The cubic root of 1389151513 is about 1115.7919027316.

The spelling of 1389151513 in words is "one billion, three hundred eighty-nine million, one hundred fifty-one thousand, five hundred thirteen".