1200501 has 10 divisors (see below), whose sum is σ = 1793462. Its totient is φ = 800280.

The previous prime is 1200499. The next prime is 1200509. The reversal of 1200501 is 1050021.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 998001 + 202500 = 999^2 + 450^2 .

It is not a de Polignac number, because 1200501 - 2¹ = 1200499 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Duffinian number.

1200501 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200509) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 7330 + ... + 7491.

2^1200501 is an apocalyptic number.

It is an amenable number.

1200501 is a deficient number, since it is larger than the sum of its proper divisors (592961).

1200501 is an equidigital number, since it uses as much as digits as its factorization.

1200501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14833 (or 14824 counting only the distinct ones).

The product of its (nonzero) digits is 10, while the sum is 9.

The square root of 1200501 is about 1095.6737653152. The cubic root of 1200501 is about 106.2806435257.

Adding to 1200501 its reverse (1050021), we get a palindrome (2250522).

The spelling of 1200501 in words is "one million, two hundred thousand, five hundred one".