1403265 has 16 divisors (see below), whose sum is σ = 2377728. Its totient is φ = 704256.

The previous prime is 1403261. The next prime is 1403287. The reversal of 1403265 is 5623041.

It is a happy number.

It is not a de Polignac number, because 1403265 - 2² = 1403261 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1403261) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2497 + ... + 3006.

It is an arithmetic number, because the mean of its divisors is an integer number (148608).

2^1403265 is an apocalyptic number.

1403265 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1403265 is a deficient number, since it is larger than the sum of its proper divisors (974463).

1403265 is a wasteful number, since it uses less digits than its factorization.

1403265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5528.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 1403265 is about 1184.5948674547. The cubic root of 1403265 is about 111.9557914384.

The spelling of 1403265 in words is "one million, four hundred three thousand, two hundred sixty-five".