1405953 has 6 divisors (see below), whose sum is σ = 2030834. Its totient is φ = 937296.

The previous prime is 1405939. The next prime is 1405979. The reversal of 1405953 is 3595041.

It can be written as a sum of positive squares in only one way, i.e., 986049 + 419904 = 993^2 + 648^2 .

It is not a de Polignac number, because 1405953 - 2¹² = 1401857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1405153) 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, 78100 + ... + 78117.

2^1405953 is an apocalyptic number.

It is an amenable number.

1405953 is a deficient number, since it is larger than the sum of its proper divisors (624881).

1405953 is a wasteful number, since it uses less digits than its factorization.

1405953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156223 (or 156220 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The square root of 1405953 is about 1185.7288897552. The cubic root of 1405953 is about 112.0272308362.

The spelling of 1405953 in words is "one million, four hundred five thousand, nine hundred fifty-three".