1395044023 has 2 divisors, whose sum is σ = 1395044024. Its totient is φ = 1395044022.

The previous prime is 1395043999. The next prime is 1395044029. The reversal of 1395044023 is 3204405931.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1395044023 is a prime.

It is a super-2 number, since 2×1395044023² = 3892295652216049058, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1395044029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 697522011 + 697522012.

It is an arithmetic number, because the mean of its divisors is an integer number (697522012).

Almost surely, 2^1395044023 is an apocalyptic number.

1395044023 is a deficient number, since it is larger than the sum of its proper divisors (1).

1395044023 is an equidigital number, since it uses as much as digits as its factorization.

1395044023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 1395044023 is about 37350.2881247254. The cubic root of 1395044023 is about 1117.3673345373.

Adding to 1395044023 its reverse (3204405931), we get a palindrome (4599449954).

The spelling of 1395044023 in words is "one billion, three hundred ninety-five million, forty-four thousand, twenty-three".