1290715 has 4 divisors (see below), whose sum is σ = 1548864. Its totient is φ = 1032568.

The previous prime is 1290683. The next prime is 1290719. The reversal of 1290715 is 5170921.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1290715 - 2⁵ = 1290683 is a prime.

It is a super-2 number, since 2×1290715² = 3331890422450, which contains 22 as substring.

It is a Duffinian number.

1290715 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 1290715.

It is not an unprimeable number, because it can be changed into a prime (1290719) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 129067 + ... + 129076.

It is an arithmetic number, because the mean of its divisors is an integer number (387216).

2^1290715 is an apocalyptic number.

1290715 is a deficient number, since it is larger than the sum of its proper divisors (258149).

1290715 is an equidigital number, since it uses as much as digits as its factorization.

1290715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258148.

The product of its (nonzero) digits is 630, while the sum is 25.

The square root of 1290715 is about 1136.0963867560. The cubic root of 1290715 is about 108.8788317720.

The spelling of 1290715 in words is "one million, two hundred ninety thousand, seven hundred fifteen".