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1240201 = 1772953
BaseRepresentation
bin100101110110010001001
32100000020101
410232302021
5304141301
642325401
713353514
oct4566211
92300211
101240201
11777866
124b9861
13345661
14243d7b
15197701
hex12ec89

1240201 has 4 divisors (see below), whose sum is σ = 1313172. Its totient is φ = 1167232.

The previous prime is 1240199. The next prime is 1240207. The reversal of 1240201 is 1020421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1020421 = 1039907.

It can be written as a sum of positive squares in 2 ways, for example, as 783225 + 456976 = 885^2 + 676^2 .

It is a cyclic number.

It is not a de Polignac number, because 1240201 - 21 = 1240199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1240207) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36460 + ... + 36493.

It is an arithmetic number, because the mean of its divisors is an integer number (328293).

21240201 is an apocalyptic number.

It is an amenable number.

1240201 is a deficient number, since it is larger than the sum of its proper divisors (72971).

1240201 is an equidigital number, since it uses as much as digits as its factorization.

1240201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72970.

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 1240201 is about 1113.6431205732. The cubic root of 1240201 is about 107.4395116711.

Adding to 1240201 its reverse (1020421), we get a palindrome (2260622).

It can be divided in two parts, 1240 and 201, that added together give a palindrome (1441).

The spelling of 1240201 in words is "one million, two hundred forty thousand, two hundred one".

Divisors: 1 17 72953 1240201