1345779 has 6 divisors (see below), whose sum is σ = 1943916. Its totient is φ = 897180.

The previous prime is 1345777. The next prime is 1345781. The reversal of 1345779 is 9775431.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1345777) and next prime (1345781).

It is not a de Polignac number, because 1345779 - 2¹ = 1345777 is a prime.

It is a super-2 number, since 2×1345779² = 3622242233682, which contains 22 as substring.

1345779 is a lucky number.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (1345777) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 74757 + ... + 74774.

It is an arithmetic number, because the mean of its divisors is an integer number (323986).

2^1345779 is an apocalyptic number.

1345779 is a deficient number, since it is larger than the sum of its proper divisors (598137).

1345779 is a wasteful number, since it uses less digits than its factorization.

1345779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149537 (or 149534 counting only the distinct ones).

The product of its digits is 26460, while the sum is 36.

The square root of 1345779 is about 1160.0771526067. The cubic root of 1345779 is about 110.4056373145.

The spelling of 1345779 in words is "one million, three hundred forty-five thousand, seven hundred seventy-nine".