1345969 has 4 divisors (see below), whose sum is σ = 1352560. Its totient is φ = 1339380.

The previous prime is 1345957. The next prime is 1345973. The reversal of 1345969 is 9695431.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1345969 - 2⁹ = 1345457 is a prime.

It is a super-2 number, since 2×1345969² = 3623265097922, which contains 22 as substring.

It is a d-powerful number, because it can be written as 1 + 3¹² + 4² + 5⁵ + 9 + 6⁷ + 9⁶ .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1342969) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2979 + ... + 3400.

It is an arithmetic number, because the mean of its divisors is an integer number (338140).

2^1345969 is an apocalyptic number.

It is an amenable number.

1345969 is a deficient number, since it is larger than the sum of its proper divisors (6591).

1345969 is an equidigital number, since it uses as much as digits as its factorization.

1345969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6590.

The product of its digits is 29160, while the sum is 37.

The square root of 1345969 is about 1160.1590408216. The cubic root of 1345969 is about 110.4108328392.

It can be divided in two parts, 1345 and 969, that multiplied together give a triangular number (1303305 = T₁₆₁₄).

The spelling of 1345969 in words is "one million, three hundred forty-five thousand, nine hundred sixty-nine".