1395697519 has 2 divisors, whose sum is σ = 1395697520. Its totient is φ = 1395697518.

The previous prime is 1395697489. The next prime is 1395697549. The reversal of 1395697519 is 9157965931.

It is a balanced prime because it is at equal distance from previous prime (1395697489) and next prime (1395697549).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1395697519 is a prime.

It is a super-2 number, since 2×1395697519² = 3895943129085510722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1395697519.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1395697549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 697848759 + 697848760.

It is an arithmetic number, because the mean of its divisors is an integer number (697848760).

Almost surely, 2^1395697519 is an apocalyptic number.

1395697519 is a deficient number, since it is larger than the sum of its proper divisors (1).

1395697519 is an equidigital number, since it uses as much as digits as its factorization.

1395697519 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2296350, while the sum is 55.

The square root of 1395697519 is about 37359.0353060675. The cubic root of 1395697519 is about 1117.5417809068.

The spelling of 1395697519 in words is "one billion, three hundred ninety-five million, six hundred ninety-seven thousand, five hundred nineteen".