1405959 has 4 divisors (see below), whose sum is σ = 1874616. Its totient is φ = 937304.

The previous prime is 1405939. The next prime is 1405979. The reversal of 1405959 is 9595041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9595041 = 3 ⋅3198347.

It is an interprime number because it is at equal distance from previous prime (1405939) and next prime (1405979).

It is a cyclic number.

It is not a de Polignac number, because 1405959 - 2⁵ = 1405927 is a prime.

It is a D-number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1405919) 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, 234324 + ... + 234329.

It is an arithmetic number, because the mean of its divisors is an integer number (468654).

2^1405959 is an apocalyptic number.

1405959 is a deficient number, since it is larger than the sum of its proper divisors (468657).

1405959 is an equidigital number, since it uses as much as digits as its factorization.

1405959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 468656.

The product of its (nonzero) digits is 8100, while the sum is 33.

The square root of 1405959 is about 1185.7314198418. The cubic root of 1405959 is about 112.0273901973.

The spelling of 1405959 in words is "one million, four hundred five thousand, nine hundred fifty-nine".