1295989 has 2 divisors, whose sum is σ = 1295990. Its totient is φ = 1295988.

The previous prime is 1295953. The next prime is 1295993. The reversal of 1295989 is 9895921.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 917764 + 378225 = 958^2 + 615^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1295989 is a prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1295089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 647994 + 647995.

It is an arithmetic number, because the mean of its divisors is an integer number (647995).

2^1295989 is an apocalyptic number.

It is an amenable number.

1295989 is a deficient number, since it is larger than the sum of its proper divisors (1).

1295989 is an equidigital number, since it uses as much as digits as its factorization.

1295989 is an evil number, because the sum of its binary digits is even.

The product of its digits is 58320, while the sum is 43.

The square root of 1295989 is about 1138.4151263928. The cubic root of 1295989 is about 109.0269271072.

The spelling of 1295989 in words is "one million, two hundred ninety-five thousand, nine hundred eighty-nine".