1395023459 has 2 divisors, whose sum is σ = 1395023460. Its totient is φ = 1395023458.

The previous prime is 1395023449. The next prime is 1395023471. The reversal of 1395023459 is 9543205931.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1395023459 is a prime.

It is not a weakly prime, because it can be changed into another prime (1395023419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 697511729 + 697511730.

It is an arithmetic number, because the mean of its divisors is an integer number (697511730).

Almost surely, 2^1395023459 is an apocalyptic number.

1395023459 is a deficient number, since it is larger than the sum of its proper divisors (1).

1395023459 is an equidigital number, since it uses as much as digits as its factorization.

1395023459 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 145800, while the sum is 41.

The square root of 1395023459 is about 37350.0128380165. The cubic root of 1395023459 is about 1117.3618442315.

The spelling of 1395023459 in words is "one billion, three hundred ninety-five million, twenty-three thousand, four hundred fifty-nine".