1245875 has 8 divisors (see below), whose sum is σ = 1555008. Its totient is φ = 996600.

The previous prime is 1245863. The next prime is 1245877. The reversal of 1245875 is 5785421.

1245875 = T₇₄ + T₇₅ + ... + T₁₉₈.

It is not a de Polignac number, because 1245875 - 2⁸ = 1245619 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1245877) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4859 + ... + 5108.

It is an arithmetic number, because the mean of its divisors is an integer number (194376).

2^1245875 is an apocalyptic number.

1245875 is a deficient number, since it is larger than the sum of its proper divisors (309133).

1245875 is an frugal number, since it uses more digits than its factorization.

1245875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9982 (or 9972 counting only the distinct ones).

The product of its digits is 11200, while the sum is 32.

The square root of 1245875 is about 1116.1877082283. The cubic root of 1245875 is about 107.6031100109.

The spelling of 1245875 in words is "one million, two hundred forty-five thousand, eight hundred seventy-five".