1403025 has 24 divisors (see below), whose sum is σ = 2499840. Its totient is φ = 690240.

The previous prime is 1403021. The next prime is 1403057. The reversal of 1403025 is 5203041.

It is not a de Polignac number, because 1403025 - 2² = 1403021 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a junction number, because it is equal to n+sod(n) for n = 1402995 and 1403013.

It is not an unprimeable number, because it can be changed into a prime (1403021) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 256 + ... + 1694.

It is an arithmetic number, because the mean of its divisors is an integer number (104160).

2^1403025 is an apocalyptic number.

1403025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1403025 is a deficient number, since it is larger than the sum of its proper divisors (1096815).

1403025 is a wasteful number, since it uses less digits than its factorization.

1403025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1465 (or 1460 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 1403025 is about 1184.4935626672. The cubic root of 1403025 is about 111.9494084858.

Adding to 1403025 its reverse (5203041), we get a palindrome (6606066).

The spelling of 1403025 in words is "one million, four hundred three thousand, twenty-five".