1250135 has 4 divisors (see below), whose sum is σ = 1500168. Its totient is φ = 1000104.

The previous prime is 1250107. The next prime is 1250141. The reversal of 1250135 is 5310521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5310521 = 1409 ⋅3769.

It is a cyclic number.

It is not a de Polignac number, because 1250135 - 2¹⁰ = 1249111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 125009 + ... + 125018.

It is an arithmetic number, because the mean of its divisors is an integer number (375042).

2^1250135 is an apocalyptic number.

1250135 is a deficient number, since it is larger than the sum of its proper divisors (250033).

1250135 is an equidigital number, since it uses as much as digits as its factorization.

1250135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250032.

The product of its (nonzero) digits is 150, while the sum is 17.

The square root of 1250135 is about 1118.0943609553. The cubic root of 1250135 is about 107.7256123444.

Adding to 1250135 its reverse (5310521), we get a palindrome (6560656).

The spelling of 1250135 in words is "one million, two hundred fifty thousand, one hundred thirty-five".