1303975 has 12 divisors (see below), whose sum is σ = 1655896. Its totient is φ = 1018080.

The previous prime is 1303963. The next prime is 1303979. The reversal of 1303975 is 5793031.

It is not a de Polignac number, because 1303975 - 2¹³ = 1295783 is a prime.

It is a Duffinian number.

1303975 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1303979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 469 + ... + 1681.

2^1303975 is an apocalyptic number.

1303975 is a deficient number, since it is larger than the sum of its proper divisors (351921).

1303975 is a wasteful number, since it uses less digits than its factorization.

1303975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1266 (or 1261 counting only the distinct ones).

The product of its (nonzero) digits is 2835, while the sum is 28.

The square root of 1303975 is about 1141.9172474396. The cubic root of 1303975 is about 109.2504132418.

It can be divided in two parts, 1303 and 975, that added together give a triangular number (2278 = T₆₇).

The spelling of 1303975 in words is "one million, three hundred three thousand, nine hundred seventy-five".