1210145 has 16 divisors (see below), whose sum is σ = 1607040. Its totient is φ = 870144.

The previous prime is 1210127. The next prime is 1210151. The reversal of 1210145 is 5410121.

1210145 is nontrivially palindromic in base 16.

It is a cyclic number.

It is not a de Polignac number, because 1210145 - 2⁸ = 1209889 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1646 + ... + 2264.

It is an arithmetic number, because the mean of its divisors is an integer number (100440).

2^1210145 is an apocalyptic number.

It is an amenable number.

1210145 is a deficient number, since it is larger than the sum of its proper divisors (396895).

1210145 is a wasteful number, since it uses less digits than its factorization.

1210145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 664.

The product of its (nonzero) digits is 40, while the sum is 14.

The square root of 1210145 is about 1100.0659071165. The cubic root of 1210145 is about 106.5644800445.

Adding to 1210145 its reverse (5410121), we get a palindrome (6620266).

The spelling of 1210145 in words is "one million, two hundred ten thousand, one hundred forty-five".