1201505 has 8 divisors (see below), whose sum is σ = 1477224. Its totient is φ = 937600.

The previous prime is 1201493. The next prime is 1201513. The reversal of 1201505 is 5051021.

1201505 is nontrivially palindromic in base 4.

It can be written as a sum of positive squares in 4 ways, for example, as 289 + 1201216 = 17^2 + 1096^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1201505 - 2⁴ = 1201489 is a prime.

It is a super-2 number, since 2×1201505² = 2887228530050, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1201505.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2726 + ... + 3135.

It is an arithmetic number, because the mean of its divisors is an integer number (184653).

2^1201505 is an apocalyptic number.

It is an amenable number.

1201505 is a deficient number, since it is larger than the sum of its proper divisors (275719).

1201505 is an equidigital number, since it uses as much as digits as its factorization.

1201505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5907.

The product of its (nonzero) digits is 50, while the sum is 14.

The square root of 1201505 is about 1096.1318351366. The cubic root of 1201505 is about 106.3102633909.

Adding to 1201505 its reverse (5051021), we get a palindrome (6252526).

The spelling of 1201505 in words is "one million, two hundred one thousand, five hundred five".