1295985319 has 2 divisors, whose sum is σ = 1295985320. Its totient is φ = 1295985318.

The previous prime is 1295985253. The next prime is 1295985329. The reversal of 1295985319 is 9135895921.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1295985319 - 2¹³ = 1295977127 is a prime.

It is a super-2 number, since 2×1295985319² = 3359155894127063522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1295985329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 647992659 + 647992660.

It is an arithmetic number, because the mean of its divisors is an integer number (647992660).

Almost surely, 2^1295985319 is an apocalyptic number.

1295985319 is a deficient number, since it is larger than the sum of its proper divisors (1).

1295985319 is an equidigital number, since it uses as much as digits as its factorization.

1295985319 is an evil number, because the sum of its binary digits is even.

The product of its digits is 874800, while the sum is 52.

The square root of 1295985319 is about 35999.7960966448. The cubic root of 1295985319 is about 1090.2682388400.

The spelling of 1295985319 in words is "one billion, two hundred ninety-five million, nine hundred eighty-five thousand, three hundred nineteen".